Q: Diaphragm, lungs, and trachea take air deep into the body and provide oxygen gas to what? Choices: - molecules - heart - brain - bloodstream A:
bloodstream

Q: The temperature dependence of solubility can be exploited to prepare what solutions of certain compounds? Choices: - mineralized - isolated - instantiated - supersaturated A:
supersaturated

Q: What unit of power is equal to 1 joule of energy per second? Choices: - hertz - byte - volt - watt A:
watt