Problem: OPTIONS:
- air pressure
- air currents
- ground temperature
- air temperature
Q: Q: What determines which type of precipitation falls? A:
Answer: air temperature

Problem:OPTIONS:
- the earth's gravity
- the sun
- transportation
- biodiversity

Q: Habitat loss, introduced species, overharvesting, and global change are major threats to what? A:
****
A: biodiversity

Q: What term is used to describe anything that takes up space and has mass? A:
OPTIONS:
- size
- weight
- opacity
- matter
matter

Q: What type of winds are created when more solar energy strikes the equator than the polar regions? A:
OPTIONS:
- arctic winds
- equatorial winds
- domestic winds
- global winds

Answer: global winds

Question: Q: When wood is burned what kind of energy allows the wood to burn? A:
OPTIONS:
- physical
- radiation
- carbon
- chemical
Answer: chemical

input: OPTIONS:
- novel
- important
- metal
- noble Now, answer this question: Q: The group 18 gases that have 8 valence electrons are referred to as what type of gases? A:
A:
output:
noble