Q: What is formed when hot lava cools? Choices: - hydrogen crystals - lava rock - magma crystals - mineral crystals A:
mineral crystals

Q: Along with other functions, what do carbohydrates, proteins, and lipids provide for the body? Choices: - muscle - hydrogen - carbon - energy A:
energy

Q: Because carbohydrates have a carbonyl functional group and several hydroxyl groups, they can undergo a variety of biochemically important reactions. the carbonyl group, for example, can be oxidized to form a carboxylic acid or reduced to form this? Choices: - glucose - sucrose - caffeine - alcohol A:
alcohol