Q: What is found in abundance in the polar ice caps and under the surface of mars? Choices: - carbon - bacteria - fossils - water A:
water

Q: Supercontinents have formed at least how many times in earth history? Choices: - twenty - nine - two - five A:
five

Q: What simple machine consists of a bar that rotates around a fixed point called the fulcrum? Choices: - battering ram - rotor - catapult - lever A:
lever