DIRECTION : In the following questions, a statement of assertion is fo...
The denudation of the soil cover and subsequent washing down is described as soil erosion. Erosion through wind, water, and the glacier is the natural cause. Overgrazing, deforestation, faulty agricultural practices, construction, and mining are some of the man-made causes that highly contribute to soil erosion.
Soil development and erosion occur simultaneously, and there is normally a balance between the two, but this balance is disturbed due to natural and human causes. There are various types of soil erosion like a sheet, gully, slope, rill, splash, and a few others. Soil erosion can be prevented by afforestation, terrace farming (for hilly regions), contour ploughing, strip cropping, and shelterbelts. Thus, Both (A)and (R) are true, but (R) is not the correct explanation of (A) because the simultaneous occurrence of soil formation and erosion is not the cause of soil erosion.
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DIRECTION : In the following questions, a statement of assertion is fo...
Assertion: Processes of soil formation and erosion go simultaneously and create a balance between the two.
Reason: The denudation of the soil cover and subsequent washing down is soil erosion.
The correct answer is option 'C': Both the assertion and reason are true, and the reason is the correct explanation of the assertion.
Explanation:
Soil formation and erosion are two natural processes that occur simultaneously and are interconnected. Let's understand each of these processes and how they create a balance between them:
1. Soil Formation:
Soil formation is a slow and continuous process that takes place over thousands of years. It involves the weathering of rocks, the decomposition of organic matter, and the accumulation of mineral particles. Various factors such as climate, parent material, topography, organisms, and time contribute to soil formation. As rocks break down and organic matter decomposes, they release minerals and nutrients that contribute to the fertility of the soil. This process enriches the soil and helps in the development of a stable soil profile.
2. Soil Erosion:
Soil erosion is the process of detachment and transportation of soil particles from one place to another. It occurs due to natural factors like wind, water, and ice, as well as human activities such as deforestation, overgrazing, and improper land management. Erosion can result in the loss of topsoil, which is the most fertile layer of the soil. This can lead to decreased soil productivity, nutrient depletion, and increased sedimentation in water bodies.
Interconnection and Balance:
The reason mentioned in the statement is correct. The denudation of the soil cover and subsequent washing down is indeed soil erosion. As the soil is eroded and transported, it exposes fresh rock surfaces, which undergo weathering and contribute to new soil formation. This continuous cycle of soil erosion and formation helps maintain a balance between the two processes.
During erosion, the topsoil may be lost, but the underlying layers of the soil still contain some organic matter, minerals, and nutrients. These materials, along with the weathering of rocks, contribute to the formation of new soil. The deposition of eroded soil in other areas can also lead to the formation of fertile land.
Therefore, the processes of soil formation and erosion are interconnected and occur simultaneously. While erosion may result in the loss of soil, it also contributes to the creation of new soil. This balance between soil formation and erosion is vital for maintaining the overall health and fertility of the land.
In conclusion, both the assertion and reason are true, and the reason provides a correct explanation for the assertion.
DIRECTION : In the following questions, a statement of assertion is fo...
Option A
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