Q: Q: Magnetism is due to the movement of what within atoms? Choices: - neutrons - protons - magnetrons - electrons A:
A: electrons

Q: Q: What can exposure to chemical or biological agents cause later in life? Choices: - adaptation - spontaneous mutation - regression - an acquired immunodeficiency A:
A: an acquired immunodeficiency

Q: Q: Why does warm air rise higher in the troposphere? Choices: - it is more dense than cool air - It contains hydrogen - it is less flourishing than cool air - it is less dense than cool air A:
A: it is less dense than cool air

Q: Q: What is formed when different gases are confined to the same container? Choices: - linear mixture - particulate mixture - compact mixture - homogeneous mixture A:
A: homogeneous mixture