Humus means......

Identify the correct statements:
$A.$ Detritivores perform fragmentation.
$B.$ The humus is further degraded by some microbes during mineralization.
$C.$ Water-soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
$D.$ The detritus food chain begins with living organisms.
$E.$ Earthworms break down detritus into smaller particles by a process called catabolism.
Choose the correct answer from the options given below:

Assertion: Death is important in the life cycle of an organism.
Reason: It helps in the recycling of elements in the environment.

$A$: Warm and moist environment can enhance the rate of decomposition.
$R$: Warm and moist climate leads to create anaerobic conditions which promote decomposition.

Most animals that live in deep oceanic waters are

Detritivores breakdown detritus into smaller particles. This process is called: