Ques: Q: When solids change to gasses, they generally pass through what other state? Choices: - chemical - frozen - carbon - liquid A:
Ans: liquid

Ques: Q: Friction causes the molecules on rubbing surfaces to move faster, which produces what? Choices: - life - precipitation - cold - heat A:
Ans: heat

Ques: Q: What two forces tend to keep an animal stationary and thus oppose locomotion? Choices: - workload and gravity - thickness and gravity - stength and gravity - friction and gravity A:
Ans: friction and gravity

Ques: Q: What system of the body is generally responsible for breathing? Choices: - excretory - integumentary - cardiac - respiratory system A:
Ans:
respiratory system