Which of the following is not true for humus?

The rate of decomposition is $........$ in anaerobic and low-moisture conditions,and $........$ in warm and moist conditions,respectively.

For the recycling of materials,which one is most necessary?

Choose the correct sentences from the options:
$(1)$ Decomposition is largely an oxygen-requiring process.
$(2)$ Warm and moist environment slows down the decomposition process.
$(3)$ Decomposition rate is slower if detritus is rich in lignin and chitin.
$(4)$ Humus is colloidal in nature and it serves as a reservoir of nutrients.

If we completely remove decomposers from an ecosystem,its functioning will be adversely affected because:

The breakdown of detritus into small particles by detritivores is called