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Question
Assertion :
Use of pesticides disturb the predator prey population.
Reason: Use of pesticides may give rise to resistant varieties of pests.
Assertion :
Use of pesticides disturb the predator prey population.
Reason: Use of pesticides may give rise to resistant varieties of pests.Open in App
Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Pesticides often disturb the predator prey population and bring about
ecological imbalance. In nature the number of plant pests is always
higher than their predators. Pesticides being broad spectrum harm both
the predators and their preys. Since the population of predators is
small, they are likely to suffer the major loss. On
the other hand, the population of preys of plant pests is always large.
Use of pesticide is likely to produce a small population resistant to
the pesticides. The population will multiply rapidly in the absence of
their natural predators.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.
Pesticides often disturb the predator prey population and bring about ecological imbalance. In nature the number of plant pests is always higher than their predators. Pesticides being broad spectrum harm both the predators and their preys. Since the population of predators is small, they are likely to suffer the major loss.
On
the other hand, the population of preys of plant pests is always large.
Use of pesticide is likely to produce a small population resistant to
the pesticides. The population will multiply rapidly in the absence of
their natural predators.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.
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