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Biology
Dragonflies are used to get rid of
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Q. Dragonflies are used to get rid of
Microbes in Human Welfare
A
Aphids
13%
B
Mosquitoes
34%
C
Both $A$ and $B$
45%
D
Shoot borer and fruit borer
9%
Solution:
A very familiar beetle with red and black marking Ladybird is useful to get rid of aphids and Dragon flies are useful to get rid of mosquitoes.