Question

1.What is momentum? Give its unit?
2.What are Lichens?
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Answer 1

Answer:

Momentum is the amount of motion possessed by a body .

Its unit is ${kg . m/s}$

a simple slow-growing plant that typically forms a low crusty, leaflike, or branching growth on rocks, walls, and trees are lichens .

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Answer 2

Answer:

Explanation: the product of a mass and a velocity can be called as a momentum

It's unit is kg.m/s.

Lichen is a natural plant from which we can obtain litmus( from which litmus paper is formed) having purple colour

Hope this helps....