Which phrase describes a feature of igneous rocks that cool quickly during formation? small crystals
coarse surfaces
O found beneath Earth's surface
O exposed after erosion occurs

I would go with "esposed afer erosion occurs".

Explanation:

Erosion can cause things to be rough, ridgid, and coarse, but it can also smooth things out. I would choose B in this situation. :-)

answer they showed that organic molecules such as amino acids could be produced from inoragnic molecules;