For a given medium, sound waves travel more slowly at lower temperatures.  Having read the above passage, choose the right answer to the following question (choices are slower or faster? ):   Compared to sound waves travelling through a cup of ice water, would sound waves travelling through a cup of boiling water move slower or faster??
faster?
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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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The greater the mass of the objects, the stronger the gravitational pull between them.  Having read the above passage, choose the right answer to the following question (choices are stronger or weaker ):   Two planets with very small masses will have a stronger or weaker gravitational pull between them than two planets with small masses?
weaker
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Objects with greater mass have a stronger force of gravity between them.  Having read the above passage, choose the right answer to the following question (choices are less gravity or more gravity ):   A planet that is smaller has less gravity or more gravity?
less gravity
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