2. Name the various agents or gradation.
3. Distinguish between transported and residual soil.
W. How is a delta formed?
8. Why is humus formed more rapidly in humid areas?
Answer the following questions.
1. Explain weathering. Mention the factors that affect
2. Explain the formation of soil with the help of a label
. What are the major soil types found in India? Give
Answers
Answer:
Explanation:
The process of erosion, transportation and deposition of rock material is known as gradation. Four agents of gradation are rivers, winds, sea water and glaciers.
Transported soil is blown or washed away from its parent rock. Soil that remains at the place of formation is called residual soil. ... The weathered pieces of rocks that have been carried by several agents like wind and water and finally breaks down into further small pieces to settle down is called transported soil.
Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land. A river moves more slowly as it nears its mouth, or end.
It is because they get enough water through the water vapour present in the atmosphere due to a huge amount of humidity which ultimately helps in easy humus creation. As bacterias need moisture to grow , in humid areas they reproduce and increase rapidly which results in fast formation of humus.
One of the factors that affects the rate of weathering is exposure to the atmosphere. Rocks that are fully exposed to the atmosphere and environmental elements, such as wind, water and temperature fluctuations, will weather more rapidly than those covered by ground.
The soil is formed in millions of year. The soil is made up of very small particles . the soil is a thin layer of material covering the earth surface and is formed from the weathering of rocks. it is made up mainly of mineral particles , organic materials , air , water and living organism.
Major soil found in India :
Alluvial soil.
Black soil.
Red and Yellow soil.
Laterite soil.
Arid soil.
Forest soil.
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