প্রশ্ন ও সমাধান

Make a precis of the following passage:

It is recognized that the only way to get rid of malaria completely is to get rid of the mosquitoes which cause it, Malaria is always associated with damp and marshy land. This is not because the land is damp, but because of the stagnant water which forms in pools, drains etc. where mosquitoes breed. Mosquitoes begin their life as larvae in the stagnant water. Malaria does not generally occur in dry desert countries because mosquitoes cannot breed there. The only way we can be safe from mosquitoes is by preventing their breeding. This can be done if stagnant water is not allowed to form anywhere, and by draining such water regularly. Another way to prevent malaria is to put a film of kerosene oil on pools and drains which, by depriving the larvae of air, kills them.