Q: Q: What is the name for compounds that contain only carbon and hydrogen? Choices: - particles - carbohydrates - carbides - hydrocarbons A:
A: hydrocarbons

Q: Q: What is the main form of energy storage in plants? Choices: - nitrogen - dioxide - liquid - starch A:
A: starch

Q: Q: What objects are made from highly reflective metal that is applied to a curved or flat piece of glass? Choices: - frames - vases - machines - mirrors A:
A: mirrors

Q: Q: Smoking increases the risk of cancer from what radioactive gas that can also be detected with a test kit for your home? Choices: - arsenic - carbon monoxide - carbon dioxide - radon A:
A: radon