A : Successional process starts only in those areas, where no living organisms ever existed. R : The

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Gujarati

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12.Ecosystem

normal

$A$ : Successional process starts only in those areas, where no living organisms ever existed.

$R$ : These areas are not supported by physical environmental conditions.

Assertion and Reason both are correct and also correct explanation.

Assertion is correct, but Reason is incorrect.

Both Assertion and Reason are incorrect.

Secondary succession occurs in the region which were previously occupied by vegetation.

Standard 12

Biology

normal

normal

normal

normal

normal