Question

Why there are treads on a tyre and on the soles of shoes?

Answer 1

$\huge\mathfrak{Answer}$...✌✌

There are treads on a tyre and on the soles of shoe because it increases the friction and gives better grip.

Answer 2

There are treads on tyres and on the soles of shoes because of frictional force which acts on them while they (tyres and soles of shoes) are moving...

Hope this helps u.