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Advantages of Biocontrol Agents over Agrochemicals

Insecticides ...

Question

Insecticides are the chemicals that are used to kill ________.

A

herbs

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B

animals

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C

insects

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D

shrubs

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Solution

The correct option is C insects
.

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Similar questions

Q. Identify A and B.
A: A chemical used to kill insects.
B: A chemical used to kill weeds.

Q. Given below is the list of few chemicals that are used for protection of crops
i) dalapon

vi) gammexane
How many of these are used as insecticides?

Q. Using insecticides on crops leads to the presence of chemicals in plants and soil.

What will happen if −

(a) Forests, scrub and other vegetation is reduced.

(b) Sewage carrying dangerous chemicals enters rivers.

(c) Birds eat insects which have been killed by insecticides.

(d) Poisonous substances are overused to prevent insects from destroying a crop.

(e) A dam is built in a famine-prone region.

Q. How principle of natural selection shows that the chemical insecticides can remain effective only for a limited period?

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Advantages of Biocontrol Agents over Agrochemicals

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