Answer:
Water pollution is caused by
Explanation :
Wastes from households, cultivation land,factories and garbage contains toxins and harmful chemicals that are dicsharged into the water bodies without proper treatment.
Solid wastes and litters i.e plastics,glass, styrofoam and aluminium detoriates the water bodies. various industrial wastes that contains harmful pollutants i.e petrochemical, mercury, lead, asbestos which are exremely harmful are disposed in the water bodies.
Oil spills from ships and tankers also pollutes the water. Increase in water temperature also plays a role in water pollution by affecting the coral reef. Increased level of the nutrients in the water, decreases the oxygen in water.