Question

Write one word for the following.

1.	Decayed plant and animal remains	.....................
2.	Disintegration of rocks on the Earth's surface caused by exposure to natural forces	.....................
3.	Removal of trees on a large scale	.....................
4.	Planting of trees on large scale on deforested land	.....................
5.	A type of pesticide that should be used to decrease soil pollution	.....................

Answer 1

1. Humus
2. Weathering
3. Deforestation
4. Afforestation
5. Organic pesticide