Question

what happens to tropical rainforest soils when the rainforest is cleared? crops can be grown for many, many years without nutrient supplements. the soils deteriorate quickly and are progressively less productive. the soils increase in quality. the soils are far more productive than other ecosystems.

Explanation:

Tropical rainforest soils depend on the continuous input of organic matter from the forest canopy. When cleared, nutrients are quickly leached away by heavy rainfall, and without the forest's ecosystem support, soil structure and fertility decline rapidly.

Answer:

The soils deteriorate quickly and are progressively less productive.