Q: Pure nonpolar covalent bonds exist only between what? A:
OPTIONS:
- two altered atoms
- two producing atoms
- three altered atoms
- two identical atoms

Answer: two identical atoms

Q: Reducing the production of what gas, or removing it from the air, are practices that could reduce global warming? A:
OPTIONS:
- helium
- hydrogen
- oxygen
- carbon dioxide

Answer: carbon dioxide

Q: Light is energy that travels in the form of what type of wave? A:
OPTIONS:
- seismic
- molecular
- particle
- electromagnetic

Answer:
electromagnetic