input: OPTIONS:
- thermal
- solar
- isolation
- gravity Now, answer this question: Q: What force pulls bodies with mass together? A:
A:
output: gravity

Q: What is algae easier to covert into that corn is currently used for? A:

OPTIONS:
- oil
- food
- sugar
- fuel

Answer: fuel

Problem: OPTIONS:
- noise pollution
- light pollution
- sound pollution
- indoor air pollution
Q: Q: Carbon monoxide, radon gas, dust and pet dander are sources of what kind of pollution? A:
Answer: indoor air pollution

Problem:OPTIONS:
- skin
- rectum
- liver
- stomach

Q: Friendly bacteria live mostly in the large intestine and part of the small intestine, because what organ is too acidic? A:
****
A: stomach

Q: What is the germ for a group of atoms within a molecule that reacts similarly anywhere it appears in different compounds? A:
OPTIONS:
- atomic group
- thermal group
- molecular group
- functional group
functional group

Q: Which type of glaciers form several unique features through erosion, including cirques, aretes, and horns? A:
OPTIONS:
- line glaciers
- deep glaciers
- icebergs
- valley glaciers

Answer:
valley glaciers