Q: Q: Because glucose is a major cellular fuel, starch represents a supply of what? A:

OPTIONS:
- oxygen
- hydrogen
- carbon
- energy

A: energy

input: OPTIONS:
- neutrons
- protons
- isotopes
- electrons Now, answer this question: Q: Electronegativity is a qualitative measure of how much an atom attracts what in a covalent bond? A:
A:
output: electrons

Q: What happens to the core of a star when it begins to run low on hydrogen? A:

OPTIONS:
- it expands
- it disappears
- it explodes
- it contracts

Answer: it contracts

Problem: OPTIONS:
- electric
- explosions
- waves
- collisions
Q: Q: Higher temperatures increase the rate of reaction in a lot of chemical reactions because they increase the frequency of what interaction between reactant particles? A:
Answer: collisions

Problem:OPTIONS:
- bisomes
- monomes
- substrates
- biomes

Q: Terrestrial ecosystems, also known for their diversity, are grouped into large categories called what? A:
****
A: biomes

Problem:OPTIONS:
- solid
- liquid
- plasma
- gas

Q: Air is an example of what state of matter? A:
****
A:
gas