Question

give reasons (a) sponge is compressable (b)the smell of cooked food spread at once.

Answer 1

a.since sponge is a solid,and it is loosely packed which means it has holes throughout it,so the air occupies the holes and makes it compress.
b.through characteristics of matter we know that air travels and caries the smell in a room.so smell of cooked food spread at once.

Answer 2

Sponge is compressible because they have tiny pores in which the air particle enter
The smell of cooked food dread at once because the smell gets into the air and travels faster if it's a hot food