Physics
Which of the following is an example of simple harmonic motion?

Ball bouncing on floor
Motion of a ceiling fan
Earth spinning on its axis
Simple pendulum motion

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Physics
Plants are dried up in winter due to frost because

Respiration does not take place at low temperature
Evaporation does not take place
Photosynthesis does not take place at such low temperature
There is mechanical loss of tissues and drought condition prevails

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