Question

4. A positive change was seen in nature during lockdown period in terms of cleaner air
and water bodies because
(a) there was less human movement due to lockdown
(b) the virus helped in cleaning air and water
(c) the government made extra efforts to clean air and water
(d) People got together to clean water bodies.​

Answer 1

Explanation:

Due to worldwide lockdown, there is drop in the air pollution, drop in the nitrogen di oxide level, drop in the carbon di oxide gas level, improvement in air quality around.

Answer 2

4. A positive change was seen in nature during lockdown period in terms of cleaner air

and water bodies because

(a) there was less human movement due to lockdown