More advanced farming practices allowed a single farmer to grow food for many more people.  Farmer Bill got an older machine to sift his wheat. This machine causes him to grow more or less food?
less
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The farther apart you move your hands, the stronger the force of the rubber band pulling your hands together.  Dan wanted to flick Carlos hard with a rubber band. To flick him the softest, Dan needs to move his hands closer or further away?
closer
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The size of the eroded particles depends on the velocity of the water. Eventually, the water deposits the materials. As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.  More particles are deposited when a river's speed increases or decreases?
decreases
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A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.  A sound wave that has more frequency will have more or less energy?
more
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