*Question*
Q: What supports life, and is also needed for the water cycle and weather? Choices: - fossil fuels - oxygen - greenhouse gas - atmosphere A:
**Answer**
atmosphere

*Question*
Q: Types of radiation that cause cancer include ultraviolet (uv) radiation and what? Choices: - thermal - molecular - vibrational - radon A:
**Answer**
radon

*Question*
Q: What do wavelengths measure the size of? Choices: - winds - fossils - tides - waves A:
**Answer**
waves

*Question*
Q: What term refers to the conditions of the atmosphere from day to day? Choices: - climate - temperture - humidity - weather A:
**Answer**
weather