Team Communication Essay Example | Topics and Well Written Essays - 250 words

Team Communication - Essay Example Thus, members must be able to use both written and verbal communication patterns to their full advantages. The same communication media could likewise be utilized for offshore teams. Aside from those that were mentioned, team members across different countries should frequently correspond through mobile phones, sending relevant documents through facsimile, Skype, video conferencing, or other more advanced technological applications. Whatever technological advances in communication resources that are similarly available in both countries could assist in enhancing the communication process. However, there are challenges in addressing barriers of communication across offshore teams in terms of language and cultural barriers. Thus, aside from ensuring that members of offshore teams share similar understanding of the universal language, English, for instance; both parties must have some knowledge on addressing cultural disparities, especially with regards to business practices. As aptly recommended by All (2011), â€Å"team members with limited proficiency may be more comfortable communicating in writing, as they can make use of online translation services† (p. 1). Likewise, the members of offshore teams must be able to respect local times in their respective time zones and should expect correspondences to be answered in the earlist possible and accessible time frame. All, A. (2011, April 21). More Tips on Communicating with Offshore Teams. Retrieved from IT Business Edge:

Remedies to Reduce Causes of Unproductive Conflict Essay

Remedies to Reduce Causes of Unproductive Conflict - Essay Example This essay stresses that  the manager of the store, Janice, never delegates responsibilities, and does not communicate policies from the corporate headquarters. There is also an unfair distribution of merit bonuses, which reflects discrimination at the workplace. This indicates poor communication, poor delegation of responsibilities, and unfairness at the workplace which cause high level of conflict at the workplace.  According to the report findings  to reduce the causes of conflict, it is important to delegate responsibilities effectively and given junior managers an opportunity to participate in decision making. This can be achieved by providing supportive infrastructure and power structure. In terms of supportive infrastructure, the company should encourage good budgeting approach, confidentiality, value alignment, top management support, and effective feedback mechanism. The power structure should also be improved to include delegated power, disbursed decision making, and collaborative task performance.  The problem experienced at Main Street Bakeries, store seventy-five is that the top management is not supportive. Janice fails to provide fair bonuses and support at the workplace. The changes made are not communicated, and employees fail to understand the need for such changes.  Supportive infrastructure should be developed to resolve this problem. The upper management should develop values and virtues that guide responsibilities in every organizational level.

FDI attraction in Chile Affected by the Country's Socio-Economical Essay

FDI attraction in Chile Affected by the Country's Socio-Economical Inequality - Essay Example In 2006, the nominal GDP per capita of Chile was recorded as the highest in Latin America. The country however is undergoing a lot of economic inequality (Trading Economics, 2013b). The socio economic inequality is the gap between the rich and the poor. The income difference of a group of individuals, society or the residents of a country is called the socio economic inequality. The economic inequality varies by the economic structures of the countries (Mankiw, 2009). According to several economists the inequality of the distribution of wealth is very essential. This improves competition and increases the efficiency of the individuals. The wealthier individuals tend to save more and spend more which helps the economy in growing. Inequality amongst the individual also increase the social and health related problems of the individuals. The economic growth of a society is also affected (Froyen, 2009) The social inequality has a direct impact on the social cohesion of the individuals, th e population’s productivity and crime rate of the society, cultural and civic participation and economic welfare as a whole (Wessels, 2000). The analysts such as Martinez (2011) are of the view that high growth rate is no excuse for the economic inequality. According to a recent report about three million Chileans are very poor. About 500,000 of the people of the Chilean population are those who are extremely poor. The economic model of Chile and the progressive growth which the economy has shown with time is sufficiently appraisable but still the growing inequality in Chile has caught attention of various economic analysts. Chile is categorised amongst a few countries which have a worst income distribution system. The percentage of the poor population is very high in the economy (OCED, 2002a). According to OECD (2002b), Chile is a nation of population of more than 17 million people. It comes under the category of developed countries and has the worst income distribution syst em amongst those countries. Several economists are of the view that the economic system of Chile would not improve by the economic growth. To improve the economy’s income distribution the government would have to take decisions to redistribute the wealth of the individuals by placing higher taxes. Another economist was of the view that Chile must focus on economic growth and nothing else. The increase in the level of the per capita income of the individuals will surely increase the well being of the individuals. The person who is a resident of Chile and lives on less than $64,134 pesos (US$135) per month is considered to be poor. But a person who lives on less than $32,067 pesos (US$67) monthly is considered to be destitute, according to the official data (Martinez, 2011). A few of the economists are of the view that creating opportunities is a part of the economic growth. Those who are utilising that opportunity are competent. For the incompetency of the rest of the individu als it is unfair to impose taxes and burden those individuals who prove themselves and are the contributing factors fro the economy. ETHICAL FAMILY INCOME TO IMPROVE SOCIETY Felipe Kast, minister of planning for Chile called the ranking by the OECD (2002b) report â€Å"shameful for its levels of inequality.† He added that Chile has plans set in line to take the people out from extreme poverty. The government plans a program of IEF – Ethical Family Income which will use a series of bonds and cash incentives for the children

Paperless office database - Topic title Coursework

Paperless office database - Topic title - Coursework Example There is also need to reach out to the global market (Digital IEEE Software House Advertisement, 2013).Previously, it was easier due to the geographical region had to cover as compared to currently when there are no boundaries globally, and you want to reach out to them. The way to collect information about the advertisement company is to do document review of journals, books, and articles. The step is very vital because there are many people out there who have carried out research on the topic, and it is necessary to consider their opinions. Further, there would be an interview with experts in the field to get first-hand information on their experiences and trending ways of advertisements (Reeves, 2014). In addition, questionnaires will also be used to reach out to experts who are willing to help but are far thus it is not possible to interview them. There are a lot of data challenges in advertisement companies. First, there is a lot of incoming data from consumers. These data needs to be analyzed, and patterns drawn from it to make projections. The results are important in making decisions in the company. The company also needs to get real-time retrieval of information concerning their customers. It is a significant challenge with traditional means to achieve this. Thus, a relational database management system is required. Handling of varied formats of data is also inevitable (Digital Magazines House Advertisement, 2014). A database system offers a lot of flexibility in storing a lot of data with different formats. They can also handle a lot of data at the same time as compared to any traditional means. Databases further encourage validation of data, segmentation of consumers and proper organization of data in the media industry. The system wishes to achieve a number of milestones. First, is to omit manual handling of data using files and cabins by digitizing content.

Questionnaire Essay Example | Topics and Well Written Essays - 500 words - 1

Questionnaire - Essay Example All fully engaged employees have a deep rooted bond with the organization and they develop feelings of loyalty, control, trust and empowerment at work. Such personnel are able to identify vital business opportunities required for growth and have the willpower of committing value added personal and emotional energies mandatory for excelling in the professional life (Sanders, 2012). For the organization, employee engagement is a crucial element as it enhances its efficiency which increases the customer satisfaction, lowers the employee turnover and boosts the productivity rate (ADP Research Institute, 2012). The questionnaire is designed to get your viewpoint about the organization’s working conditions. You are required to give honest, true and fair opinion about the following statements. In front of each statement, select the box which is an indication of your opinion related to the statement. The main purpose of all of these questions is to get an insight about the employee’s feeling about the work and value within the organization. With the help of this questionnaire, the company will be able to determine the effectiveness of employee engagement within the business and monitor the results over a period of time. ADP Research Institute. (2012). Employee satisfaction vs. Employee engagement: Are they the same thing? Retrieved February 24, 2014 from

Nursing Research websites Part 2 Essay Example | Topics and Well Written Essays - 500 words

Nursing Research websites Part 2 - Essay Example gs, 4) collating all evidences and formulating recommendation, 5) putting recommendation into practice, and 6) determining the effects of the application (Oncology Nursing Society). Evidence-based medicine (EBM) and evidence-based nursing (EBN) are subsets of evidence-based practice (EBP). They both need the skill to sift among the very vast information available, and pick out which ones are important for the situation at hand. Both of them aim to alleviate the condition of the patient by planning work-up by integrating findings from appropriate studies and health professional’s expertise and patient wishes. In fact, based on the steps in EBM provided by Donald (2002) and comparing them with the steps of EBN described above, they seem to be very similar. Despite the similarities of EBM and EBN, there are differences as well. First, since physicians are primarily tasked to plan and to provide treatment and therapy to their patients, EBM mostly deals with the biomedical aspect of healthcare. For example, doctors might try to find evidence of the effectiveness of a treatment option on certain subpopulations (Donald, 2002), probably having the same demographics as the patient in hand. In effect, EBM becomes much more crucial since doctor’s decisions are more likely a matter of life and death for the patient. It allows individualization of therapy, resulting to less adverse risks and more positive outcomes during recovery. On the other hand, nurses are most likely expected to enact some of the instructions of the doctors, and to provide what McSherry described as a holistic biopsychosocial care to the patients. Distribution of meals, ensuring medicine intake, monitoring vital signs, and probably providing an environment conducive for the recovery of patients are just some of the nurses’ roles. Thus, although important, their decisions may not be as crucial as that of the doctors’, who determine what kind of foods are allowed to the patient, and what

The Role of Geology in Influencing Water Chemistry Essay Example for Free

The Role of Geology in Influencing Water Chemistry Essay Water is and remains one of the important wants of the people, animals and the nature at large. Without water, they would be no life. Water is an unusual compound which has unique physical properties, and this makes it the compound of life, yet it’s the most abundant compound in the earth’s biosphere. The chemistry of  water  deals with the fundamental chemical property and information about water. Water chemistry can elaborate in terms of the following subtitles: composition of water, Structure, and bonding, Molecular Vibration, as well as geological composition and properties of water among many other aspects of water chemistry (Krauskopf and Bird, 1994). Geology  is often responsible for how much water  filters below the zone of saturation, making the water table easy to measure. Light,  porous  rocks can hold more water than heavy,  dense  rocks. An area underlain with  pumice, a very light and porous rock, is more likely to hold a fuller aquifer and provide a clearer measurement for a water table. The water table of an area underlain with hard  granite  or  marble may be much more difficult to  assess (Krauskopf and Bird, 1994). Hypothesis: surficial geology controls the chemistry of surface waters Introduction Water quality has become one of the essential aspects in life, and it’s defined in terms of the chemical, biological and physical composition of the geological factor. The water quality of rivers, lakes and many other water source changes from one geographical location to another. This is due to difference in the geological composition of the places, i.e., the rocks beneath the earths surface are different and in turn different quality in water quality. However, various factors influence water chemistry in the world (Drever, 1982). One of such vital elements is ‘geology’. This is the science deals with the dynamics and physical history of the earths’, the rock that makes the earths crust, and the physical, chemical, and biological changes that the earth undergoes or has undergone. In other words, geology is the science entails the study of rock-solid Earth, the  rocks  of which it is composed, and the processes by which they change. This branch of scien ce is one of vital and major contributing factor in the water chemistry. In order to understand the impact of geology on the water chemistry, this paper will look into the ground water (Drever, 1982). Clear understanding of the nature of the bedrock layers of the region is essential as geology is in determining the quality and quantity of ground water that can be obtained from the underground at any given location. For example, in some parts of the earth, the bedrock consists of sedimentary layers of rocks that have profuse pore spaces between mineral grains. The rock layers can form creatively wide aquifers, or conduits for groundwater movement, that are of predictable depths, and from which apparently indefinite quantities of high-quality groundwater can be obtained. In such areas, groundwater is the clear way out for public water needs (Frape et al, 1984). Bedrock geology helps in determining the distribution and density of underground water-bearing fissures, as well as the nature  of the soils that are obtained from the rock weathering. Different types of rocks contain more or less fractures that may or may not be interconnected with each other. The degree of interconnection among fractures, and their overall ability to move water, has a great deal to do with how productive a water well will be that intersects the fractures. Different rocks also make different soils when they weather, and the type of soil influences its ability to absorb rainwater that falls on the surface, and transmit the water to bedrock fractures beneath (Cooke et al, 2012). The composition of the underground water as well as the surface water is dependent on natural factors, (geological, topographical, meteorological, hydrological, and biological) in the drainage basin and varies with seasonal differences in runoff volumes, weather conditions, and water levels. The quality is, however, affected by both natural and human influences. The most vital or importance of the natural influences is geological, hydrological and climatic, since this affects both quality and quantity of the water available. Underground water is held in the pore space of sediments such as sands or gravels or in the fissures of fractured rock such as crystalline rock and limestone. The rocky body containing the water is termed an aquifer and the upper water level in the saturated body is termed the water table. Typically, groundwater’s have a steady flow pattern. Velocity is governed mainly by the porosity and permeability of the material through which the water flows, and is often up to several orders of magnitude less than that of surface water, as a result mixing is poor (Cooke et al, 2012). The rock or sediment in an aquifer is denoted by the permeability and porosity, whereby permeability is the measure of the ease with which fluids passes through the rocks. On the other hand, porosity is the ratio of pores and fissure volume to the total volume of the rock. The chemical composition of the rocks greatly influences the chemical composition of water. The different types of aquifers explain this difference in water chemistry all over the places (John, 1990). Underground formations are three types, hard crystalline rocks, and consolidated sedimentary and unconsolidated sediments. The example of hard crystalline rocks includes granites, gneisses, quartzite’s, schist’s, and a few rocks from volcanic rocks. These rocks have little or no porosity but it is further enhanced by weathering. For example, ground water in volcanic formations in regions of recent volcanic activity is mostly inhibited with fluoride, and boron elements, which makes it unsuitable uses. Chemical properties of the bedrock greatly influence the chemical properties and water chemistry. For example, water acidity is highly determined by the drift of the bedrock geology. The following example examines the influence of bedrock and soils on water acidity. When the bedrock constitutes of carbonates, the solution of the minerals assimilates H+ ions and hence acidifying water as water percolates through the rocks. CaCO3 + H+ = Ca2+ +HCO3 this results to acidified wa ter (John, 1990). Effect of Total Dissolved Solids in Groundwater A body of saturated rocks through where water can easily move is known as an aquifer. Aquifers contain rocks such as sandstone, conglomerate, fractured limestone and unconsolidated sand and gravel which are both permeable and porous. In addition, fractured volcanic rocks, i.e. columnar basalts also make good aquifers (John, 1990). Underground water tastes dissimilar from one place to the other or else at different times of the year for several reasons. In exploring those reasons, the paper looks first consider why water from one well might be different from another well, even one that is close by. What dictates groundwater taste is the quantity and type of dissolved minerals in it. In other words, this isn’t pure water as pure water has no dissolved minerals and hence does not occur naturally. The amount and type of minerals that are dissolved in water is what gives waters their initial taste. There are different factors that control the dissolved minerals in the ground water. (I) The type of minerals, making up the aquifer, (II) the chemical state of the ground water, (III), the duration or length of time which water makes contact with the minerals and the rocks (Frape et al, 1984). As the rain water passes through different types aquifers, it results in a different chemical composition of water. Almost all groundwater comes from precipitation that soaks into the soil and passes down to the aquifers. Within the aquifer, the groundwater moves not as an underground stream, but rather seeping between and around individual soil and rock particles. Rainwater has a slightly acidic pH; therefore it tends to dissolve solid minerals in the soil and in the aquifers. Sandstone, limestone and basalt all have different minerals. Therefore it is rational to expect groundwater in contact with these different geologic materials to have different chemical compositions {factor (1) above} and therefore different tastes. In addition, the length the groundwater is in contact with the minerals, the greater the extent of its reaction with those minerals and the higher will be the content of dissolved minerals (John, 1990). The table below can be used to illustrate the effect of mineral in water hence determining water chemistry. The table illustrates typical natural water compositions, from rainwater to seawater, groundwater in different aquifers, to groundwater that has been in contact with the aquifer for different periods of time. Table 1.0 A B C D E F G H Ca 0.7 0.65 240 399 145 6.6 3.10 4530 Mg 1.1 0.14 7200 1340 54 1.1 0.7 162 Na 9.5 0.56 83500 10400 ~27 ~37 3.02 2730 K 0.11 4060 370 ~2 ~3 1.08 32.0 Bicarbonate 4 250 27 620 75 20 56 Sulfate 7.5 2.2 16400 186 60 15 1.0 1.0 Chloride 17 0.57 140000 19020 52 17 0.5 12600 Silica 0.3 48 3 21 103 16.4 8.5 TDS 38 4.7 254000 35000 665 221 35 20330 PH 5.4 7.5 6.6 6.2 6.5 Table 1; key Examples of the composition of natural water from a variety of locations and environments (all concentrations given in milligrams/liter). TDS = total dissolved solids. A dash (-) indicates that the component was not detected or the water was not analyzed for this constituent. A tilde (~) indicates that the analysis is approximate only (John, 1990). Key to the Analyses: (A) Rainwater from Menlo Park, California; (B) Average rainwater from sites in North Carolina and Virginia; (C) Great Salt Lake, Utah; (D) Average seawater; (E) Groundwater from limestone of the Supai Formation, Grand Canyon; (F) Groundwater from volcanic rocks, New Mexico; (G) Groundwater from a spring, Sierra Nevada Mountains: short residence time; (H) Groundwater from metamorphic rocks in Canada: long-residence time. Chemical State of Ground Water A large amount of the seasonal and natural water quality disparities we observe are the result of small but considerable alterations in the chemical state of groundwater. The chemical state of groundwater is generally defined in terms of parameters such as, the temperature, oxidation-reduction potential, and PH. These three factors are greatly influenced by chemical reactions between the aquifer materials and the ground water, hence changing the water chemistry in the common water bodies such as lakes, rivers, oceans, etc. the chemical composition of the aquifer greatly controls the physical properties of water such as color, hardness, taste, odor and appearance (John, 1990). Table 1.1 Water Characteristics and Its Causes (John, 1990) Characteristics or Symptoms Cause(s) Hardness: Low suds production with soap, mineral scale developed in water heater and plumbing High concentrations of calcium and magnesium Color: Water has a color other than clear Red/Brown: iron Black: manganese or organic matter Yellow: dissolved organic matter such as tannins Taste: Metallic or mineral taste Metallic: dissolved metals such as iron and manganese Mineral taste: high concentration of common minerals such as sodium, Chloride, sulfate, calcium, etc. Odor: Musty or rotten egg smell Musty: algae or bacterial growth pipes or well Rotten egg: hydrogen sulfide Appearance: cloudy with or without color Suspended mineral matter or microorganisms Control the chemical composition of groundwater. For example, the total dissolved solids (TDS) in groundwater, largely derived from aquifer minerals that dissolve in groundwater, will change significantly as a function of temperature and PH. Temperature. At any given temperature, there is a specific concentration of a dissolved mineral constituent in the groundwater that is in contact with that mineral. The actual concentration is temperature dependent, e.g., at higher temperatures, groundwater can dissolve more of the mineral. Even changes in groundwater temperature of only 5 to 10 C can cause detectable changes in TDS (John, 1990). The Natural pH of Groundwater, The pH is a determination of the acidity of groundwater: the lower the pH value, the more acidic the water is and vice versa (a measure of the hydrogen ion (H+) availability). At a pH of 7, water is said to be neutral. Natural rainwater is slightly acidic because it combines with carbon dioxide (CO2) in the atmosphere, forming carbonic acid (H2CO3) according to the reaction (1) H2O + CO2 = H2CO3. Some of the carbonic acid in the rainwater disassociates or breaks down according to the reaction (2), H2CO3 = HCO- + H+ producing bicarbonate (HCO-) and H+. This in turn reduces the PH of the rain water. In addition, the acidic water that is formed is able to dissolve more of the minerals in the aquifers hence greatly contributing to the change of water chemistry. The more amount of CO2 in the atmosphere the more acidic the water becomes (Verdonschot, 2013). Composition of the Earth’s Crust, The relative abundance of elements in the crustal material of the Earth has been a subject of much interest to chemists for many years. Although the subject of natural-water chemistry is only indirectly concerned with these averages, a knowledge of rock composition is essential to understanding the chemical composition of natural water, and it is therefore desirable to discuss the subject briefly. The Earth is generally considered to be made up of an iron-rich core surrounded by a thick mantle made up of magnesium- and iron-rich silicates and a thin outer crust made up of rather extensively reworked silicates and other minerals. Reversible and Irreversible Reactions in Water Chemistry, Many kinds of chemical reactions can be important in establishing and maintaining the composition of natural water. Concepts that are appropriate for evaluating these processes differ somewhat depending on the nature of the reactions involved. Therefore, some at tention needs to be given to reaction types here, although this cannot be a rigorous classification scheme (Verdonschot, 2013). Different types of rocks and the impact to the water chemistry There are three major types or classes of rocks, namely, sedimentary, igneous and metamorphic. The three are different from each other as they also have varying differences in terms of impact to the water chemistry. To start with, sedimentary rocks are rocks formed from particles of pebbles, shells, sand and other fragments. The different particles are brought together and hence called sediment, whereby they accumulate for a long time and in layers over a long time forming a rock (Verdonschot, 2013). Generally, sedimentary rocks are fairly soft and may in turn break or crumble easily. You can often see sand, pebbles, or stones in the rock and it are usually the only type that contains fossils. Examples of this rock type include conglomerate and limestone among many other rocks. These rocks contain a lot of minerals much of which are soluble in water. As the rain water passes through the rocks, the minerals are absorbed and in turn contributing to the changing or different water chemi stry from one region to the other. For example, carbonate-cemented sandstone that is composed largely of silica in the form of quartz might yield water containing mostly calcium and bicarbonate ions (Geology.com, 2014). One type of rocks under the class sedimentary is the chemical sedimentary rocks. This is formed when minerals dissolved in the water starts to precipitate forming a rock of minerals. However, not all minerals do precipitate and in turn become part of the water in the lakes and rivers. Many resistant sedimentary rocks are permeable and may, therefore, easily receive and transmit solutes acquired by water from some other type of rock. In the course of moving through the sedimentary formations, several kinds of alteration processes may occur that may influence the composition of the transmitted water (Verdonschot, 2013). Fig 1.0 sedimentary rock image (Geology.com, 2014) The 2nd type of rocks is the Metamorphic, these are rocks formed under the surface of the earth from the changes which are caused by intense heat and pressure. Rocks formed through this process are mostly denoted by ribbon like layers and may also have shiny crystals that grow slowly over time. A good example of this rock type includes gneiss and marble. Fig 1.1 an image of a metamorphic rock (Geology.com, 2014) Lastly, there is the ‘Igneous’. These are rocks formed when molten rock deep within the earth (magma) cools and hardens. This cooling and hardening may occur either inside the earth’s crust or else it blows up onto the earth’s surface from volcanoes (in this case, it is called lava). When the lava cools very quickly, there are no crystals form and the rock looks shiny and glasslike. Occasionally gas bubbles are ensnared in the rock all through the cooling process, leaving tiny holes and spaces in the rock (Buynevich, 2011). Examples of these rocks include basalt and obsidian. Igneous rocks consist predominantly of silicate minerals. As the solutions move through the soil and the underlying rock, the composition of the water should be expected to change. Rocks of igneous origin may be classified as extrusive or intrusive. Both the extrusive and intrusive rocks are further classified by geologists on the basis of chemical and mineral composition, texture, and other characteristics. Rocks of the same chemical and mineral composition have different names, but tend to yield similar weathering products to the water. Fig 1.2 images of an igneous rock (granite) (Geology.com, 2014) Many of the rocks in the three classes contain numerous chemicals which contribute to the defining of water chemistry in one way or another. In ground water composition, seven solutes are the most commonly found salts in metals. These seven solutes make up nearly 95 percent of all water solutes (Buynevich, 2011). These salts include calcium (Ca), magnesium (Mg), sodium (Na), potassium (K), chloride (Cl), sulfate (SO4), and bicarbonate (HCO3). Sodium is derived from the dissolution of silicate minerals, such as plagioclase feldspars, which make up some of the sand and gravel that fill the water basin. Potassium is derived from the dissolution of some silicate minerals in granitic rocks and from reactions with some clay minerals. Few reactions remove these seven solutes from ground water. However, some minerals, such as calcite CaCO3, can precipitate from solution to form a solid phase (Buynevich, 2011). Conclusion The interpretation of the water chemistry data has become vital and most reliably made within the conceptual framework on the ground water system that has been derived from several additional types of hydrologic and geologic data, such as water levels, that indicate general directions of ground-water flow. One of the major aspects of the geology of the human is the fact that it helps in maintaining the quality of water supplies. This helps understand the sources of water and in turn protect them from pollution. In addition, it helps in determining the suitability for various uses such as drinking, farming among many other uses (Dissanayake Chandrajith, 2009). The chemistry of lakes, rivers, oceans, and stream water in many regions is strongly associated with the character and circulation of geologic materials in the watershed. For example, the dominance of glacial till and granitic gneiss rock in the North and East of Big Moose Lake region results in a geologically sensitive terrain distinguished by low alkalinity and chemical compositions of the surface water with only slightly modified from ambient precipitation. On the contrary, widespread deposits of substantial glacial till in the lower part of the system (e.g. Moss-Cascade Valley) allow for much infiltration of precipitation into the groundwater system where weathering reactions increase alkalinity and extensively alters water chemistry. In references to the hypothesis, ‘surficial geology controls the chemistry of surface waters’ holds true as seen in the water composition of different regions as the water chemistry and watershed being determined by the geological facto rs (Dissanayake Chandrajith, 2009). References Drever, J.I., 2000. The Geochemistry of Natural Waters. Prentice-Hall, Inc., Englewood Cliffs, NJ, 388p. Frape, S.K., Fritz, P., and McNutt, R.H., 1984. Water-rock interaction and chemistry of Groundwater from the Canadian Shield. Geochimica et Cosmochimica Acta, v. 48, pp. 1617-1627. Heath, R.C., 1990. Basic Ground-Water Hydrology. U.S. Geological Survey Water-Supply Paper 2220, 84p. Hem, J.D., 1992. Study and Interpretation of the Chemical Characteristics of Natural Water. U.S. Geological Survey Water-Supply Paper 2254. Krauskopf, K.B., with Bird, D.K., 1994. Introduction to Geochemistry, 3 ed. McGraw-Hill, rd New York, 640p. Dissanayake, C. B., Chandrajith, R. (2009).  Introduction to medical geology: Focus on tropical environment. Berlin: Springer. Buynevich, I. V. (2011).  Geology and geoarchaeology of the Black Sea Region: Beyond the flood hypothesis. Boulder, Colo: Geological Society of America. Allanson, B. R. (1990).  Inland waters of southern Africa: An ecological perspective. Dordrecht, The Netherlands: Kluwer Academic Publishers. Gunn, A. M., Babbitt, B. (2001).  The impact of geology on the United States: A reference guide to benefits and hazards. Westport, Conn. [u.a.: Greenwood Press. Rost, A. L., Fritsen, C. H., Davis, C. J. (2011). Distribution of freshwater diatom Didymosphenia geminata in streams in the Sierra Nevada, USA, in relation to water chemistry and bedrock geology.  Hydrobiologia,  665(1), 157-167. Verdonschot, P. P., Spears, B. B., Feld, C. C., Brucet, S. S., Keizer-Vlek, H. H., Borja, A. A., Johnson, R. R. (2013). A comparative review of recovery processes in rivers, lakes, estuarine and coastal waters.  Hydrobiology,  704(1), 453-474. Cooke, G. M., Chao, N. L., Beheregaray, L. B. (2012). Natural selection in the water: freshwater invasion and adaptation by water colour in the Amazonian pufferfish.  Journal Of Evolutionary Biology,  25(7), 1305-1320. Dittman, J., Driscoll, C. (2009). Factors influencing changes in mercury concentrations in lake water and yellow perch ( Perca flavescens) in Adirondack lakes.  Biogeochemistry,  93(3), 179-196. Geology.com. News and Information about Geology and Earth Science. Retrieved from: http://geology.com/ John D. Hem. (1990) Study and Interpretation of the Chemical Characteristics of Natural Water. Third Edition. Department Of The Interior William P. Clark, Secretary U.S. Geological Survey Dallas L. Peck, Director Source document