Irrigation systems operate under the environment of pressure from several external and contextual factors. As a socio-ecological system SES , an irrigation system faces ever-increasing scale of influence of the human activity Shivakoti and Bastakoti, Essay UK - http: If this essay isn't quite what you're looking for, why not order your own custom Politics essay, dissertation or piece of coursework that answers your exact question?
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Water pollution is the mixing of foreign substances by means of organic, inorganic, biological and radiological in the water degrading the quality and usefulness of water.
Hazardous pollutants may contain various types of impurities including harmful chemicals, dissolved gases, suspended matters, dissolved minerals, and even microbes. All the contaminants reduce the level of dissolved oxygen in the water and affecting the lives of animals and human beings to a great extent.
Dissolved oxygen is the oxygen present in water required by the aquatic system to continue the lives of plants and animals. However biochemical oxygen is the demanded oxygen by the aerobic micro-organisms to oxidize organic matters of wastes. Water pollution is caused by two means, one is natural water pollution due to the leaching of rocks, decay of organic matters, decay of dead matters, silting, soil erosion, etc and another one is man-made water pollution due to the deforestation, set up of industries near large water bodies, high level emission of industrial wastes, domestic sewage, synthetic chemicals, radio-active wastes, fertilizers, insecticides, pesticides etc.
Fresh water is the most important source of life on the earth. Any living thing may survive without food for days however it is impossible to imagine life without water and oxygen. The ever increasing human population enhances the demand of more water for purposes like drinking, washing, performing industrial processes, irrigating crops, arranging swimming pools and other water-sports centres.
Water pollution is done by the people of all over the world because of increasing demands and competitions of luxuries life. Waste products from many human activities are spoiling the whole water and decreasing the amount of oxygen available in the water.
Such pollutants are altering the physical, chemical, thermal, and biological characteristics of the water and adversely affecting the lives inside as well as outside the water. When we drink the polluted water, harmful chemicals and other pollutants goes inside our body and deteriorates all the body organs functioning and puts our lives in danger.
Such harmful chemicals also disturb the lives of animals and plants greatly. When plants absorb dirty water through their roots, they stop growing and die. Thousands of seabirds are killing because of the oil spilling from ships and industries.
High level of water pollution is done due to the chemicals coming out of the agricultural usage of fertilizers, insecticides and pesticides. The effect of water pollution varies from place to place upon the type and amount of water contamination.
The degradation of drinking water needs an urgent basis prevention method which is possible by the proper understanding and support from the end of each and every person living on the earth. Water is the most important need of the life on the earth. It makes possible the possibility of any forms of life here and their existence. It maintains the ecological balance in the biosphere. Clean water is very necessary for fulfilling the purpose of drinking, bathing, washing, power generation, irrigation of crops, disposal of sewage, manufacturing processes and many more.
Increasing human population causes rapid industrialization and unplanned urbanization which are releasing lots wastes into the small and large water bodies which ultimately degrades the quality of water. The mixing of such pollutants directly and continuously into the water bodies decreases the self purifying capacity of the water by declining the ozone which kills harmful microorganisms available in the water.
Contamination of water deteriorates the chemical, physical, and biological characteristics of the water which is very harmful to the human beings, animals and plants all over the world.
Most of the important animals and plants species have been lost because of the water contamination. The farmers need water for growing crops or plants. With water, the soil becomes wet. Then it becomes fit for sowing seeds there, the new plants can grow well only in the wet soil. The water comes from the rain. If not, the soil is then made wet by irrigation or otherwise. Pure water should be used for drinking. Impure water carries germs and spreads diseases.
The ground water is drawn by deep tube-wells and water pumps. Water is supplied to the consumers through roadside taps and house connections. In rural areas, the supply of drinking water .
Apr 26, · 'Water' is one of the natures precious gifts to mankind. All living things consist mostly of water eg. the human body is of two thirds of water. It is clear, colourless liquid that appears blue when viewed through a thickness of 20 justappclose.tk: All Essay.
Introduction Water is an essential ingredient for the existence of life as we know it. Biochemical processes occur in aqueous environments, many of which use water. Essay on Water Published by admin at am under Example Essays Introduction Water is an essential ingredient for the existence of life as we know it. Biochemical processes occur in aqueous environments, many of which use water. Water also plays a significant role in the process of photosynthesis (6 CO2 + 6H2O + kcal -> C6H12O6 + 6O2).
The importance of water on life essaysWater has many roles in living organisms and life on earth is impossible without it. It makes up between 60% and 95% of the fresh mass of the organisms. In a water molecule, two hydrogen atoms are joined to an oxygen atom by covalent bonds. This makes it a stabl. Essay/paper sample on a given topic "essay on importance of water in our life Importance of water in our life Water is the most important substance in the world, a necessity utilized by living things for survival but also necessary for several processes.