In the recent years, there has been an increasing incidence of floods in the plains of northern India, because
There has been an increase in annual rainfall.
The rate of silting of dams has gone lip.
There has been increased deforestation in the catchment areas.
Increased areas of land is being self cultivated.
A
There has been increased deforestation in the catchment areas.
B
There has been an increase in annual rainfall.
C
The rate of silting of dams has gone lip.
D
Increased areas of land is being self cultivated.
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Solution
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Deforestation is the removal of forest that can cause flooding. Coastal vegetation reduces the impact of waves and winds associated with a storm surge. Without this vegetation, coastal villages are susceptible to damaging floods. When trees are there, the roots are able to hold the soil and prevent erosion. When the roots are gone after deforestation, the soil can be errode and causes flood or other natural disasters.
Therefore, the correct answer is option C.
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