| Assertion (A): Unlike temperate forests, the tropical rainforests, if cleared can yield productive farmland that can support intensive agriculture for several years even without chemical fertilizers. |
| Reason (R): The primary productivity of the tropical rainforests is very high when compared to that of temperate forests. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is not the correct explanation of A
C) A is true but R is false
D) A is false but R is true
Correct Answer: D
Solution :
A is false and R is true because in tropical rainforest areas, heavy rainfall occurs throughout the year and there is a lot of leaching of minerals. These areas also have high temperature and bacterial activity is enormous which leads to decrease in humus content. Thus the fertility of soil is reduced and no intensive cultivation is possible without application of chemical fertilizers.
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