Question

Select the correct statement regarding water pollution.

• A. A change in the temperature of water bodies
• B. A change in the pressure of water bodies
• C. The removal of desirable substance from water bodies
• D. Addition of undesirable substance to water bodies

Answer 1

Answer: (D)

Addition of undesirable substance to water bodies

Addition of undesirable substances to water and removal of desirable substances from it is termed as water pollution. But the addition of harmful substances causes a very harmful effect leading to water pollution. For example, the addition of industrial smoke, effluents, washing dirty clothes, bathing, sewage waste, etc causes water pollution.

So, option D is the correct answer.