Problem:OPTIONS:
- crystals
- solid
- chemical
- liquid

Q: What form do biofuels take that makes them very useful? A:
****
A: liquid

Problem:OPTIONS:
- one direction
- few directions
- some directions
- all directions

Q: Gas particles can move randomly in what directions? A:
****
A: all directions

Problem:OPTIONS:
- mold
- ferns
- viruses
- bacteria

Q: What were the first life forms found on earth similar to? A:
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A: bacteria

Problem:OPTIONS:
- gases
- crystals
- acids
- oxides

Q: Organic compounds are defined as covalently bonded compounds containing carbon, excluding carbonates and what else? A:
****
A:
oxides