Question

four five points on topsoil for class fifth ​

Answer 1

Explanation:

Topsoil provides a seedbed for the germination of seeds (currently an expensive input item) and the establishment of a rooting system for the crop. It supports a complex community of beneficial micro-organisms playing a vital role in the decomposition of plant residues and the recycling of nutrients.

Answer 2

Answer:

Topsoil is the most fertile layer of the soil. It has humus, which is necessary for the growth of plants. Sometimes, this topsoil is carried away by wind, water or other elements. This process is called soil erosion. In places where there is a lot of soil erosion, the fertility of the soil is greatly reduced.