Q: What do you call a substance that cannot be broken down to other substances by chemical reactions.? A:

OPTIONS:
- a participate
- a molecule
- a compound
- an element

Answer: an element

Problem: OPTIONS:
- lightning
- atmosphere
- wind
- precipitation
Q: Q: What is the term for water that falls from clouds? A:
Answer: precipitation

Problem:OPTIONS:
- Acceleration
- vibration
- tension
- friction

Q: What does pushing an object over the surface of a ramp cause? A:
****
A: friction

Q: Linked genes are located on the same what? A:
OPTIONS:
- genome
- nucleolus
- bacterium
- chromosome
chromosome

Q: Many enzymes are simple proteins consisting entirely of one or more of these? A:
OPTIONS:
- alkali acid chains
- interaction acid chains
- proteins acid chains
- amino acid chains

Answer: amino acid chains

input with options: Q: The partial pressure of each gas in a mixture is proportional to its what? A:
OPTIONS:
- chemical fraction
- lactic fraction
- mesh fraction
- mole fraction
output:
mole fraction