Question

Name the following biotic constituents of soil?

Answer 1

Soil is a material composed of mainly five ingredients i.e. minerals, soil organic matter, living organisms, gas, and water etc. Soil minerals are divided into three size classes which are generally represented as clay, silt, and sand. And the percentages of particles present in the soil in these size classes is called soil texture.

Complete answer:
Soil is one amongst the foremost vital components of an associate ecosystem, and it contains each biotic and abiotic factor. The composition of abiotic factors is especially vital because it will impact the biotic factors, like what varieties of plants will grow in the associate system.
Soil contains air, water, and minerals also as plant and animal matter, each living and dead. These soil parts make up two classes. within the initial class are biotic factors—all the living and once-living things in the soil, like plants and insects. The second class consists of abiotic factors, that embody all dead things—for example, minerals, water, and air.
The foremost common minerals found in soil that support plant growth are phosphorus, and metal and conjointly, nitrogen gas. Other, less common minerals embody Ca, magnesium, and sulphur. The organic phenomenon and abiotic factors within the soil are what structure the soil’s composition.

Note:
mainly Biotic components are living components of an ecosystem. For soil ecosystem microorganisms and insects are the biotic components, which plays an important role in the formation of soil; also microorganisms are helping in the ageing of soil. That's why microorganisms are the true friend of the farmer.