Q: What are carbonated beverages pressurized with? Choices: - helium - dioxide - hydrogen - co2 A:
co2

Q: The processes of homeostasis and temperature control are centered in the hypothalamus of the advanced animal brain, thus thermoregulation depends on what organ system? Choices: - circulatory system - digestive system - cardiovascular system - nervous system A:
nervous system

Q: The term "environment of deposition" is useful for understanding the characteristics of what type of rock? Choices: - glacial - meteor - limestone - sedimentary A:
sedimentary

Q: What is earth's main source of energy? Choices: - the atmosphere - the moon - the core - the sun A:
the sun