What is humus?
A) A term to describe soil that is not fertile.
B) The broken down remains of plants and animals.
C) A type of soil that cannot retain water for long.
D) A mixture of man-made articles such as plastic and glass.

Respuesta :

MSB033
the answer would be B. Humus is the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.