*Question*
Q: What are electromagnetic waves with the longest wavelengths called? Choices: - channel waves - sound waves - infrared waves - radio waves A:
**Answer**
radio waves

*Question*
Q: What affects how high a cake rises when it bakes? Choices: - air currents - air movement - current pressure - air pressure A:
**Answer**
air pressure

*Question*
Q: The number of electrons in the outer energy level determines what property of nonmetals? Choices: - density - permeability - vibration - reactivity A:
**Answer**
reactivity

*Question*
Q: Which two systems together provide support to the body and allow for movement? Choices: - muscular and nervous - skeletal and digestive - vascular and muscular - skeletal and muscular A:
**Answer**
skeletal and muscular