1. how gravity work
2. why do we sleep
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Answer:
Sleeping refreshes our mind.
Gravity pulls everything down towards the centre of the earth..
Hop it helped..
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Explanation:
HOW GRAVITY WORK ?
-----✓ An invisible force that pulls robjects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall. ... So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass.
WHY DO WE SLEEP
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