Q: Habitat loss, introduced species, overharvesting, and global change are major threats to what? Choices: - the earth's gravity - the sun - transportation - biodiversity A:
biodiversity

Q: What term is used to describe anything that takes up space and has mass? Choices: - size - weight - opacity - matter A:
matter

Q: Q: What type of winds are created when more solar energy strikes the equator than the polar regions? Choices: - arctic winds - equatorial winds - domestic winds - global winds A:
A: global winds

Question: Q: When wood is burned what kind of energy allows the wood to burn? Choices: - physical - radiation - carbon - chemical A:
Answer: chemical

*Question*
Q: What term describes waves that transfer energy through matter? Choices: - mechanical currents - temperature waves - energy currents - mechanical waves A:
**Answer**
mechanical waves

*Question*
Q: What happens during the process of digestion? Choices: - excretion of food - cell division - regurgitation - breakdown of food A:
**Answer**
breakdown of food