Question

Which of the following biological techniques helps to control the pollution?

• A. Use of pesticides
• B. Use of electrostatic precipitator
• C. Use of fertilizers
• D. None of the above

Answer 1

The correct option is B Use of electrostatic precipitator

Pollution leads to increase in the concentration of the harmful chemicals in the atmosphere. The pollution can be controlled with the use of certain devices and mechanisms. Toxic gases are released through the exhausts of the industries and vehicles. The electrostatic precipitator help in the removal or conversion of these gases into non-toxic forms before releasing into the atmosphere.

Thus, the correct answer is option B.