Wear And Tear Due To Use Or Passage Of Time

A : Banking of roads reduces the wear and tear of the tyres of automobiles. R : By banking of the roads one component of the normal reaction on the automobile contributes to necessary centripetal force.

"_______" sources of energy can be replenished with the passage of time .

In ……… oscillations, the amplitude decreases gradually with the passage of time.

The Worse For Wear

Why is osteoarthritis commonly called 'wear-and -tear' disease ? In which age is it common ?