Crops growing in light soils are more prone to be affected by drought Why ........

Geography Agriculture

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Crops growing in light soils are more prone to be affected by drought. Why?

Light soils have less water retention capacity.

Light soils have low iron content.

Light soils cannot be irrigated unlike dark soils.

Light soils change their mineral nutrients composition on dehydrating.

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Explanation:

Soils rich in sand and poor in clay are called light soils and soils rich in clay are dark soils.
Generally light soils have poor water retention capacity due to lack of clay and more of sand. Dark soils on the other hand have high water retention capacity due to presence of clay.
As a result light soils dry up easily during breaks in monsoon and the crops are likely to be affected. Dark soils on the other hand retain water and survive dry spells.
Other options are incorrect as iron content and mineral composition have no relation with drought.