Physics
A person can jump higher on the moon's surface than on the earth because :

The moon is cooler than earth
The moon has no atmosphere
The acceleration due to gravity in moon is smaller than that on the earth.
The moon's surface is rough

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Physics
Which of the following is not a property of heavy water ?

Boiling point of heavy water is lower than that or ordinary water
Freezing point of heavy water is higher than that of ordinary water
It produces corrosion
Density of heavy water is higher than that of ordinary water

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