Physics
The velocity required to place a vehicle in orbit around the moon is ________ that required to place it in orbit round the earth.

Equal to
Greater than or equal to
Less than
Greater than

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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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