Emission lines are lines that are made when wavelengths of light are given off by cooling gases. O True
O False

If your house is facing the north and your facing the east, what direction is your left hand facing? a. north b. east c. south d. west what would happen if it rained on a rock almost everyday for 3 years? a. it would start to crumble b. it would start to take a natural formation c. it would stay the same : |

The european union was formally established in

What is the border between layers a through f and layer g called?