Smaller sediments are dropped as the slope becomes less steep. Having read the above passage, choose the right answer to the following question (choices are large or small ): Dan is watching sand fall down a small hill. The pieces of sand will be very large or small?
small
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A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves. Having read the above passage, choose the right answer to the following question (choices are increased or decreased ): The cop shot the radar gun at the super fast car, which increased or decreased the waves?
increased
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The higher up a food chain that humans eat, the greater the levels of toxic metals they take in. Having read the above passage, choose the right answer to the following question (choices are more or less ): A human who eats an animal that is low on the food chain should take in more or less toxic metals?
less
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Air in the troposphere is warmer closer to Earths surface. Having read the above passage, choose the right answer to the following question (choices are warmer or cooler ): As the rocket shoots up through the troposphere and gets farther from the Earth's surface, the air will be warmer or cooler?
cooler
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