If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because

a) the soil of rainforest is deficient in nutrients
b) propagules of the trees in a rain forest have poor viability
c) the rain forest species are slow growing
d) exotic species invade the fertile soil of rain forest

Ans-a

Explanation-Tropical rain forest soil is very poor in nutrient which are required by plants to grow. This is due to acidic nature of soil and incessant rains. Potassium, calcium, magnesium and phospohorous are lost away due to leaching. Thus regeneration is very slow.