Assertion :Deforestation increases carbon dioxide concentration in the atmosphere. Reason: Deforestation may lead to desertification generally.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Deforestation is the conversion of forested areas to non-forested ones. One of the major effects of deforestation is enhanced carbon dioxide concentration in the atmosphere because trees that could hold a lot of carbon in their biomass are lost with deforestation. Deforestation also causes loss of biodiversity due to habitat destruction, disturbs hydrological cycle, causes soil erosion and may lead to desertification in extreme cases.
So, the correct answer is 'Assertion is correct but Reason is incorrect'.

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