Question

Swamps are a hub of mosquitoes, but not ponds. It is because:

• A. Swamp have more water than pond
• B. Pond consist of fishes which eat larvae
• C. Pond contains freshwater where larvae cannot grow
• D. Pond water kills larvae by its own

Answer 1

The correct option is B Pond consist of fishes which eat larvae

$\bullet$ Mosquitoes lay their eggs in still water bodies.
$\bullet$ Baby mosquitoes which come out of the eggs are called larvae. They stay in water bodies until they are grown-ups.
$\bullet$ To decrease the population of mosquitoes these larvae should be killed.
$\bullet$ One way of killing them is by adding fishes into these water bodies.
$\bullet$ These fishes eat up the larvae. Hence, they help in decreasing the population of mosquitoes.