Why are most of the soil's nutrients located in the top layer of the soil?

Because the top layer of the soil has the most broken down organic matter.

ANSWER:

The top layer is the place where the nutrients exchange takes place in soil and contains nutrients rich materials. So most of the soil's nutrients located in the top layer of the soil.

EXPLANATION:

The top soil is the place where the organism dies and the nutrients are absorbed. The nutrients are essential for the soil to be fertile.So the top soil of the layer has the most nutrient and organic materials for the growing of crops and other agricultural products.

1. D
2. A
3. E
4. C
5. B