Exercises pollution. A. Fill in the blanks. 1. Smoke from the vehicles is a major source of 2. The process of restoring forests is called 3. Fossil fuels such as and produce ash when they are burnt. 4. Loss of hearing can be caused due to pollution.

Exercises pollution. A. Fill in the blanks. 1. Smoke from the vehicles

1.	Exercises pollution. A. Fill in the blanks. 1. Smoke from the vehicles is a major source of 2. The process of restoring forests is called 3. Fossil fuels such as and produce ash when they are burnt. 4. Loss of hearing can be caused due to pollution.
Answer» 1 pollution 2 reforestation 3 COAL 4..I didn't understand