Q: Q: Which gas is responsible for global warming?   A:

A: carbon dioxide


Q: Q: An element symbol without a charge written next to it is assumed to be what?   A:

A: uncharged atom


Q: Q: What is a thin layer of gas that surrounds earth called?   A:

A: the atmosphere


Q: Q: Who first discovered the moons of jupiter in 1610?   A:

A:
galileo