OBJECTIVE FORESTRY

Detailed explanation-1: -Leaf litter covers a forest floor, creating a thick layer of humus. In addition to the plant material in leaf litter, humus is composed of decaying animals, such as insects, and other organisms, such as mushrooms.

Detailed explanation-2: -The uppermost layer of the soil is called topsoil and this layer contains humus, plant roots, and living creatures. The more humus found in topsoil, the more nutrient rich the topsoil and the better the conditions for growing plants.

Detailed explanation-3: -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-4: -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).