Q: What is transmitted that makes up the electromagnetic spectrum? Choices: - gamma rays - light waves of different wavelengths - sound waves of different frequencies - electromagnetic radiation in different wavelengths A:
electromagnetic radiation in different wavelengths
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Q: Root systems are mainly of two types. dicots have a tap root system, while monocots have a what? Choices: - long root system - runner root system - attaching root system - fibrous root system A:
fibrous root system
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Q: Portal veins carry blood between what? Choices: - chambers of the heart - digestive organs - arteries - pairs of capillary beds A:
pairs of capillary beds
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Q: What is a benefit of low sulfur coal over high sulfur coal? Choices: - greater enerty - lower cost - less erosion - less pollution A:
less pollution
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