Question

Give reason why old and smooth tyres are discarded

Answer 1

Answer:

because its capacity to oppose or friction decreases

Answer 2

Here is your answer...

Old and smooth tyres are discarded as less friction will be there and there might me a chance of an accident because due to less friction brakes will not be applied properly and tyres will slip..

hope this will help you....

if it is helpful then plzz mark it as brainliest....