Q: Answer the question

Which of the following allows the planets to stay in orbit?
OPTIONS:
- the Moon's gravity
- the Sun's gravity
- magnetism
- rotation

A: the Sun's gravity

Q: Answer the question

As the hawk population increases in an ecosystem, the deer mouse population will most likely decrease as a result of
OPTIONS:
- decrease in food source.
- increase in disease.
- increase in predators.
- decrease in habitat.

A: increase in predators.

Q: Answer the question

Pumice is formed when lava from a volcano cools. Which rock type is pumice?
OPTIONS:
- Gaseous rock
- Igneous rock
- Sedimentary rock
- Metamorphic rock

A:
Igneous rock