The cycling of nutrients in an ecosystem will stop if which of the following are removed?

Given below are two statements:
Statement $I:$
Decomposition is a process in which the detritus is degraded into simpler substances by microbes.
Statement $II:$
Decomposition is faster if the detritus is rich in lignin and chitin.
In the light of the above statements,choose the correct answer from the options given below:

Which of the following processes helps in nutrient conservation?

How do you distinguish between humification and mineralization?

Which of the following is not true for humus?

Breakdown of detritus into smaller particles by earthworm is a process called