INDIAN GEOGRAPHY

Detailed explanation-1: -Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. This material is called leaf litter. When animals die, their remains add to the litter.

Detailed explanation-2: -Dead plants and animals are degraded in soil by decomposing bacteria and fungi. The material formed after this decomposition activity is called humus. It is very rich in nutrients and black in color. Greater the amount of humus more is the soil productivity.

Detailed explanation-3: -Humus is the organic component of soil, formed by the decomposition of leaves and other plant materials. Litter and humus are found in the layer of Horizon A (topsoil).

Detailed explanation-4: -Soil is partly made up of decaying plant or animal remains. These are called organic matter or humus and contain the living and once living components of our soil. Soil mostly contains pieces of disintegrating rocks or inorganic matter, water, and air.

Detailed explanation-5: -Defiinition of decomposer: 1 Mark Microorganisms in forest feed upon the dead plants and animal tissues and convert them into a darkbrown or black organic coloured substance called humus. The presence of humus ensures that the nutrients of the dead plants and animals are released into the soil..