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प्रश्न
Assertion (A): Barchans are moon-shaped live dunes.
Reason (R): The migration of the barchans is a threat to desert life.
विकल्प
Both A and R are true, and R is the correct explanation of A.
Both A and Rare true, but R does not explain A.
A is true, but R is false.
A is false, but R is true.
MCQ
अभिकथन और तर्क
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उत्तर
Both A and R are true, and R is the correct explanation of A.
Explanation:
Barchans are crescent-shaped dunes formed in deserts. Migration of barchans can bury vegetation, disrupt habitats, and damage human settlements, which makes it a threat to desert life.
So, both the assertion and the reason are true, and the reason correctly explains the assertion.
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