Q: Motor vehicles account for almost half of the consumption of what? Choices: - hydrocarbon - greenhouse gases - electricity - fossil fuel A:
fossil fuel
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Q: What type of energy is produced when two objects move together? Choices: - potential energy - molecular energy - physical energy - mechanical energy A:
mechanical energy
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Q: When light meets matter, it may be reflected, transmitted, or what? Choices: - diffuse - reflected - diffracted - absorbed A:
absorbed
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Q: What are double sugars called? Choices: - monosaccharides - sodiums - silicates - disaccharides A:
disaccharides
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