When we press a rubber sucker on a smooth surface,it sticks to the surface.Explain why this happens in about 30 words.

Question

When we press a rubber sucker on a smooth surface,it sticks
to the surface Explain why this happens in about
30 words

Somnath physics · Accepted Answer

When we press a sucker on a smooth surface we remove some of the
air between the sucker and the smooth surface This deficiency of
air lets the air outside exert pressure on the surface of the
sucker and the surface so as to refill the air expelled Force due
to the pressure keeps the sucker stuck to the surface