Answer the following question and increase your knowledge.

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1.Why does an object fall towards the earth not upwards ?Explain free fall.

2.If x/y+y/x=-1,then
x3-y3=?
3.What is a doctor who does operations called?
4.How would you show that the shoot of a plant grows towards sunlight?
Solutions and answers

5.Factorise:-x4+y4.
6.Explain law of conservation of-
a.Mass
b.Momentum

IIT Questions