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8.Microbes in Human Welfare
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Which of the following are natural insecticides?
$(a)$ Rotenone $(b)$ Pyrethrum
$(c)$ Nicotine $(d)$ Azadirachtin
A
$(a), (b)\; and\; (c) \;only$
B
$(a), (c)\; and\; (d) \;only$
C
$(a) \;and\; (b) \;only$
D
$(a), (b), (c)\; and\; (d)$
Solution
All are natural insecticides.
Standard 12
Biology
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