Question

Explain the role of rain in formation of soil. Justify that dust is a pollutient

Answer 1

Answer:

If rainfall contains harmful pollutants the soil excess of filter ; contaminants are captured by the soil particles and the water comes out cleaners in the quaifers and rivers.

Dust remains present in air as suspended particle. It can cause energy and other respiratory diseases it also affects plant growth by covering stomata on leaf surface and blocking them it acts as the career of toxic compounds like heavy metals. Thus, dust acts a pollutant.

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Answer 2

Answer:

1)RAIN helps in formation of SOIL in numerous ways as follows:

2)DUST is a POLLUTANT

Explanation:

1)

• Rain is an atmospheric agency which help in displacement and deposition in case of soil that has been weathered by various tupe of rocks.
• Rain helps in deciding the nature of soil as acidic or basic.
• Rain helps in maintaining fertility of soil as excess of rainfall leads to removal of fertile layer ie.erosion.
• Sudden cooling and warming of water leads to formation of cracks in rocks and hence leads to disintegration of it and carries particles of soil.
• Sometimes fast moving water leads the rubbing action in roch crevices which leads to disintegration.

2)

• Dust acts as a carrier of heavy metals.
• and hence acts as pollutant.
• Dust also contaminates air as it has concentrated pollen grains and other foreign objects.

Hope you got it.

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