Assertion (A) : Unlike temperate forests, the tropical rain forests, 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 rain forest is very high when compared to that of temperate forests.
The correct option is A. A is false but R is true
In tropical rainforests because of the rainfall throughout the year, leaching of minerals occur. Due to high temperatures bacterial activity Is enormous, there by humous cantent in the soil decreases. To raise crops in this region requires application of chemical fertilizers.