Q: Concentration of what, the substance left behind when ocean water evaporates, is about 3.5 percent? Choices: - hydrogen - sugar - quartz - salts A:
salts

Q: When a metal is oxidized and a nonmetal is reduced in a redox reaction, what is the resulting compound called? Choices: - soluble compound - alloy - magnetic compound - ionic compound A:
ionic compound

Q: Q: Energy constantly changes back and forth between kinetic and what type of energy? Choices: - practical - physical - mechanical - potential A:
A: potential

Question: Q: What globular protein is used in the construction of the hollow tube? Choices: - actin - cyclin - keratin - tubulin A:
Answer: tubulin

*Question*
Q: What term refers to any method of removing carbon dioxide from the atmosphere and storing it in another form? Choices: - carbon footprint - carbon metamorphosis - carbon transfer - carbon sequestration A:
**Answer**
carbon sequestration

Q: What light-producing process occurs when a substance absorbs shorter-wavelength ultraviolet light and then gives off the energy as visible light? Choices: - candescence - resistance - luminescence - fluorescence A:
fluorescence