Question

A matchstick lights due to
O
pressure
O
friction
O
smoothness
O O
O
none of these​

Answer 1

Answer:

friction

Explanation:

When we rub a matchstick against the rough surface of a matchbox, then friction between the head of matchstick and rough side of matchbox produces heat. This heat burns the chemicals present on the head of matchstick due to which the matchstick lights up.

Answer 2

a matchstick lights due to friction