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Q: Liquids with strong intermolecular forces have higher what than liquids with weaker forces? Read this paragraph and choose the correct option from the provided answers: Liquids with strong intermolecular forces have higher surface tensions than liquids with weaker forces. Choices: - temperature - melting point - freezing point - surface tension A:
(Answer)
surface tension

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Q: Which theory explains how populations of organisms can change over time? Read this paragraph and choose the correct option from the provided answers: The theory of evolution by natural selection explains how populations of organisms can change over time. As environments change, so must the traits of organisms if they are to survive in the new conditions. Evolution by natural selection explains how this happens. It also explains why there are so many different species of organisms on Earth today. You can see examples of the incredible diversity of living animals in Figure below . You can read more about the theory of evolution in the chapter Evolution. Choices: - free by natural selection - changes by natural selection - intelligent selection - evolution by natural selection A:
(Answer)
evolution by natural selection

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Q: The sun's heat can also be trapped in your home by using south facing windows and good what? Read this paragraph and choose the correct option from the provided answers: Solar energy is used to heat homes and water, and to make electricity. Scientists and engineers have many ways to get energy from the Sun ( Figure above ). One is by using solar cells. Solar cells are devices that turn sunlight directly into electricity. Lots of solar cells make up an individual solar panel. You may have seen solar panels on roof tops. The Sun's heat can also be trapped in your home by using south facing windows and good insulation. Choices: - floors - vegetation - curtains - insulation A:
(Answer)
insulation