Question

what is humus define it?​

Answer 1

Answer:

Humus is the dark organic matter that forms in soil when dead plant and animal matter decays.

Answer 2

Answer:

Humus (or humous) is the organic matter in the soil. ... Nitrogen is the most important. Plants put roots into the soil to get the water and nutrients. Humus is good for plants because it is like a sponge. The dark color of humus (usually black or dark brown) helps to warm up cold soils in the spring.