Q: Q: Are the majority of archaea chemotrophs or photosynthetic? Choices: - photosynthetics - neither - autotrophs - chemotrophs A:
A: chemotrophs

Q: Q: Ice floats because it is less what than liquid water? Choices: - heavy - gaseous - warm - dense A:
A: dense

Q: Q: What do you call a pure substance that cannot be broken down into different types of substances? Choices: - molecule - sample - compound - element A:
A: element

Q: Q: What are compounds formed by ionic bonds called? Choices: - nuclear compounds - layered compounds - mixed compounds - ionic compounds (salts) A:
A: ionic compounds (salts)