Question

What are The major factors responsible for river pollution

Answer 1

Explanation:

Industrial wastes, mixtures of chemicals, heavy metals are all discharged in water and these are difficult to clean up.

Agricultural wastes, chemicals, feritilisers, pesticides used in agriculture have made the river water bodies contaminated.

Nature’s rain also brings with it pollutants as it falls through polluted air. We call this acid rain, which when reached the soil, releases harmful substances.

Domestic wastes from households and the sewage that we throw into rivers increases the pollution levels.

Regular disposal of plastic bags and plastic objects, solid wastes, flowers, garlands is another cause of pollution.

People responding to nature’s call in open spaces near the water bodies also contribute to river pollution.

Animals washing, car washing, clothes washing are other causes.

Answer 2

Answer:

[●]The Factors Responsible for river pollution are •

➡Industrial wastes : Wastes from industries are discharged into rivers without filtration especially the hot contaminated water which harms aquatic life in river.

➡Eutrophication: Eutrophication is an increased level of nutrients in water bodies. This results in bloom of algae in water. It also depletes the oxygen in water, which negatively affects fish and other aquatic animal population.

➡Dumping of wastes : Dumping of solid wastes in water bodies causes huge problems.

Litters include glass, plastic, aluminum, styrofoam etc are also harmful.

Different things take different amount of time to degrade in water. They affect aquatic plants and animals.

➡Oil Pollution: The river water gets polluted due to oil spilled from huge ships and tankers. The spilled oil does not dissolve in water and forms a thick sludge polluting the water.