Q: Gases can undergo diffusion, or the opposite, which is what? Choices: - defusion - dissipation - infusion - effusion A:
effusion

Q: Birds evolved from what type of ancestor? Choices: - apes - insect - fish - reptile A:
reptile

Q: Birds actually have two basic types of feathers: flight feathers and? Choices: - colorful plumes - landing feathers - shed feathers - down feathers A:
down feathers

Q: What is the study of energy and how it interacts with matter? Choices: - quantum mechanics - cosmology - kinetics - physics A:
physics