Question

Why is fiction. Called a necessary evil

Answer 1

... Friction is said to be a necessary evil because it is useful as well as harmful. friction helps us to walk, write, hold things, lift objects. So it is necessary in our lives. Without friction many essential processes can not be done.......

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Answer 2

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ur answer is ⬇⬇

friction is called the necessary evil because it has advantages and disadvantages

some of the advantages are as follow :- 1)it is because of friction that we can walk drive open doors turn taps and write . screw and nails do not slip off because of the friction between the wood and the nail .A knot remains in its place only because of friction.

DISADVENTAGES

Friction causes wear and tear of the moving parts . this results in the wastes of energy . Friction causes the moving the moving parts of machinery to heat up

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Depending on the requirements we may need to reduce or increase the friction between the surfaces

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