short notes about soil formation
Answers
Explanation:
Soils are formed by physical or chemical disintegration of rocks. Thus, the chief parent material of soil is the rock. Vegetation, including plants and trees, derives its food (nutrients) from the soil and, in the process, causes changes in the chemical composition and the structure of soil.
Soils are dynamic, forming continuously over a long period of time. Soil types differ, depending on the parent materials from which they came and from the surrounding environment. The way in which soil forms depends on:
parent material
climate
topography
living organisms
time
Soil is a natural medium made up of five major components:
mineral particles: clay, silt, sand and gravel
organic matter: decaying plant and animal material
water
air
living organisms (soil biota): ranging from bacteria, fungi and earthworms
A healthy soil should have a balance of these components.
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Answer:
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● Soils are formed by physical or chemical disintegration of rocks.
● Thus, the chief parent material of soil is the rock.
● Vegetation, including plants and trees, derives its food (nutrients) from the soil and, in the process, causes changes in the chemical composition and the structure of soil.