Question

More than one correct answer

Which of the following steps should be followed to minimize water pollution?

• A. Less use of artificial fertilizers and insecticides
• B. Discharging untreated sewer water into rivers
• C. Use of manures
• D. Use of natural pesticides

Answer 1

Answer: (A), (C)

Use of manures

The explanation for the correct options:

Water pollution: It is the contamination of different water sources because of the addition of different impurities to it

(A) Less use of artificial fertilizers and insecticides:

• Artificial fertilizers and insecticides are used to remove harmful pests from crops.
• Excess amounts of these will result in contamination of surface as well as groundwater.
• Thus, using less amount of artificial fertilizers and insecticides results in minimizing water pollution.

(C) Use of manures:

• Manures: It is known as the decomposed form of dead plants and animals which is used to increase the production of crops.
• This does not result in water pollution.

The explanation for the incorrect options:

(B) Discharging untreated sewer water into the river:

• Discharging untreated sewer water into rivers or lakes will result in increased water pollution.

(D) Use of natural pesticides:

• Pesticides are used to kill insects for growing better crops. However, they are toxic in nature and thus contaminate surface water and groundwater.
• so usage of this will result in an increase in water pollution.

Thus, options (A) and (C) are correct options.