Discussion
Assertion(A) : The pouring of kerosene oil on stagnant pools helps to eradicate malaria.
Reason(R) : The kerosene oil is poisonous for the mosquitoes.
Answer: C
Correct answer: A is true but R is false
Kerosene poured on stagnant water does check malaria, so A is true. But it works mechanically: the thin film spreads over the surface and prevents the mosquito larvae from reaching air through their breathing tubes, so they suffocate. It is not acting as a poison. R is false.
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