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Ans : The non - directional movement of a plant part usually the petals of a flower in response to light is called photonasty. Examples : A...
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Pollution in thermal power plants can be controlled by installing electrostatic precipitators in their chimneys. As a result the unburnt c...
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Some resistors have their values printed on them in small print which is usually visible with a magnifying glass. Example as below: ...
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