Question

why is the soil of Amazon infertile ?

Answer 1

One reason the rain forest soil is so poor is that most of the nutrients are stored in the plants themselves. In any forest, dead organic matter falls to the ground, providing valuable nutrients for new growth. In cooler or drier climates, the nutrients build up in thesoil.

Answer 2

the amazon  soil is infertile as most of the soil nutrients are absorbed or stored by the plants.