Question

Q.4
is very fertile because it contain
humus.
O Topsoil
O Subsoil
Bedrock
None of these​

Answer 1

Answer:

Option C

Agriculture depends on nitrogen and other nutrients found in humus. Some experts think humus makes soil more fertile. Others say humus helps prevent disease in plants and food crops. When humus is in soil, the soil will crumble.

Answer 2

Answer:

TOP SOIL

IS CORRECT ANS