Available Answers

1. 1.

   Define pollution. How is it caused?
2. 2.

   State the causes of soil pollution.
3. 3.

   State the effects of freshwater pollution. How is it caused?
4. 4.

   How do agriculture wastes harm the environment?
5. 5.

   Which gases are emitted through refrigerators and air-conditions?
6. 6.

   Differentiate between the natural and man-made sources of pollution.