Q: How long do the long-lived isotopes require to decay to a safe level in a nuclear reactor? Choices: - tens of years - millions of years - hundreds of years - thousands of years A:
thousands of years
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Q: A penguin must do what before molting? Choices: - hibernate - use muscle mass - mate - increase muscle mass A:
increase muscle mass
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Q: The sites of protein synthesis are tiny structures called? Choices: - crystals - protons - prokaryotes - ribosomes A:
ribosomes
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Q: What is the term for the wavelengths of light humans can see? Choices: - radiation - ultraviolet light - distinct light - visible light A:
visible light
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