What should be changed weekly to avoid the breeding of mosquitoes?

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T.V. sets

Water in coolers

Rooftops

None of these

answer is B.

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Detailed Solution

Water in coolers should be changed properly to avoid the breeding of mosquitoes.
Coolers are filled with water in water tanks to receive fresh and cool air. Many times people forget to refill the tank with freshwater. For the mosquito and a variety of other parasites and insects that spread a wide range of diseases, especially in tropical areas, stagnant water and other untreated water provide a habitat. Malaria is unquestionably pervasive and has a greater negative impact on human health.

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