Q: In how many basic was can substances cross the plasma membrane? Choices: - one - three - four - two A:
two
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Q: Electric generators convert what type of energy to electric energy? Choices: - electromagnetic energy - thermodynamic energy - fluid energy - mechanical energy A:
mechanical energy
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Q: Kinetic and potential are two forms of what? Choices: - pressure - fuel - exercise - energy A:
energy
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Q: Which currents distribute heat around the planet and have a large impact on climate? Choices: - air - electrical - wind - surface A:
surface
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