FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Soil formation is a very slow process which maily happens due to weathering of rocks.
Detailed explanation-2: -Soil forms continuously, but slowly, from the gradual breakdown of rocks through weathering. Weathering can be a physical, chemical or biological process: physical weathering-breakdown of rocks from the result of a mechanical action.
Detailed explanation-3: -Soil is eroding more quickly than it is being formed, causing land to become unsuitable for agriculture – a particularly serious concern in a world where the population is expected to top 9 billion by midcentury.
Detailed explanation-4: -Explanation: 1 ans. is true because soil takes more time to form but less time to get eroded.
Detailed explanation-5: -Soil is a thin layer of mineral particles, humus etc. covering the earth’s crust.