Question

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called? A) sand. B) clay. C) nutrients. D) humus.

Answer 1

D) humus.

When plants, animals, and other organisms die and decompose, they contribute organic matter to the soil. This organic matter is called humus. Humus is a dark, organic material that is rich in nutrients and helps to improve the fertility and structure of the soil. It is an important component of soil that provides nutrients for plants and supports the growth of microorganisms.