Question

b). What has led to deterioration of air pollution?
I. air pollution caused by industries
II. sudden increase in emission of gases
III. people using vehicles after removal of restrictior
IV. Use of old vehicles​

Answer 1

Answer:

I.

Explanation:

Many factors contribute to this increase, including reliance on fossil fuels such as coal fired power plants, dependence on private transport motor vehicles, inefficient use of energy in buildings, and the use of biomass for cooking and heating.