Question
Define water pollution? Differentiate between surface water and subsurface water pollution?
Answer :
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Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater), usually as a result of human activities. Water pollution is one of many types of pollution which results from contaminants being introduced into the natural environment. Pollution causes adverse change. Water pollution is often caused by the discharge of inadequately treated wastewater into natural bodies of water. This can lead to environmental degradation of aquatic ecosystems. In turn, this can lead to public health problems. For example, people living downstream may use the same polluted river water for drinking or bathing or irrigation.
Water pollution affects the entire biosphere of plants and organisms
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