Write an essay on Water pollution .
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Explanation:
ESSAY ON WATER POLLUTION:
Water pollution can be said to mean the contamination of bodies of water largely due to human activities. Examples of water bodies include rivers, lakes, groundwater, aquifers and oceans. Water pollution occurs when contaminants are added to the water bodies. In other words, water is said to be polluted when it is adulterated due to anthropogenic contaminants. Water that is polluted due to contaminants is not fit for human use like drinking.
Water pollution is a worldwide problem that requires serious evaluation of various policies in water resources. Water pollution can be classified into marine pollution, surface water pollution and also nutrient pollution. Water pollution sources can either be non-point sources or point sources. Point source as the name indicates has just one cause of pollution that is identifiable such as wastewater treatment facility, storm drain, or stream. Non- point pollution sources are quite diffuse and an example is the runoff from agriculture. Pollution is a result of a cumulative effect with respect to time.
Types of water pollution:
Surface water pollution has pollution of lakes, rivers and oceans as examples and is basically of water bodies that are open. Marine pollution is a sub-category of surface water pollution. It is the introduction of contaminants or their entry into large water bodies. Rivers are means by which seas are polluted due to rivers emptying into seas. A typical example is the discharge of industrial waste and sewage into the ocean and this is very common in nations that are just developing.
Groundwater pollution is also known as groundwater contamination and there are slight relationships between surface water and groundwater. Groundwater is quite exposed to contamination from some sources that are not contaminants for surface water. It is important to note that the difference between point and non-point sources is quite irrelevant.
Classification of pollution sources:
Surface water and groundwater, even though they are separate resources are interrelated. It is surface water that percolates into the soil and it becomes groundwater. Also, groundwater can become surface water by feeding water bodies. Sources of water pollution are classified into two categories based on the origin.
Point source water pollution is contaminants that enter a water body through an identifiable and single source like a ditch or a pipe. A point source includes industrial storm water, storm sewer systems of municipals, and discharge from a sewage treatment facility, a factory or even a storm drain in the city.
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Answer:
As you already know water is everywhere and all around. However, we have a fixed amount of water on earth. It just changes its states and goes through a cyclic order, known as the Water Cycle. The water cycle is a natural process that is continuous in nature. It is the pattern in which the water from oceans, seas, lakes, etc gets evaporated and turns to vapor. After which it goes through the process of condensation, and finally precipitation when it falls back to earth as rain or snow.
Water pollution is the contamination of water bodies (like oceans, seas, lakes, rivers, aquifers, and groundwater) usually caused due to human activities. Water pollution is any change, minor or major in the physical, chemical or biological properties of water that eventually leads to a detrimental consequence of any living organism. Drinking water, called Potable Water, is considered safe enough for human and animal consumption.