Examples : A dandelion flower opens up in the morning in bright light but closes in the evening when the light fades and it gets dark. Whereas a moonflower behaves exactly opposite. The petals of moonflower close during the day when there is bright light but open up at night when it is dark and there is no light.
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Ans : Due to the weight of the molecules in the upper layers of the atmosphere and the force of gravity exerted by the earth, the air molecu...
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When electricity travels through a shorter distance,it encounters less resistance as a result the current increases. The heat generated by e... -
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