Water pollution is the contamination of water bodies.
Water is a transparent fluid which forms the world's streams, lakes, oceans and rain and is the major constituent of the fluids of organisms.
Pollution is the introduction of contaminants into the natural environment that cause adverse change.
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This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
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Water pollution affects the entire biosphere – plants and organisms living in these bodies of water.
A body of water or waterbody is any significant accumulation of water, generally on a planet's surface.
In almost all cases the effect is damaging not only to individual species and population, but also to the natural biological communities.
In biology, a species is one of the basic units of biological classification and a taxonomic rank.