Question

air pockets, or vesicles, can form in rapidly cooling magma or lava. in which type of rock would you expect air pockets?

Answer 1

Extrusive Igneous Rocks:

Quick cooling means that mineral crystals don't have much time to grow, so these rocks have a very fine-grained or even glassy texture. Hot gas bubbles are often trapped in the quenched lava, forming a bubbly, vesicular texture.