Given the fact that:  The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.  Answer the question:   If Jim is exploring layers of rock and he moves deeper into the Earth, what happens to the age of the rock older or younger?
older
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Given the fact that:  Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.  Answer the question:   Mary is taking measurements of the amount of oxygen in samples of water. If she measured the total levels of dissolved oxygen in a sample at 70 degrees fahrenheit and compared it to a sample at 80 degrees fahrenheit, which would contain more dissolved oxygen 80 degrees fahrenheit or 70 degrees fahrenheit?
70 degrees fahrenheit
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Given the fact that:  For a given medium, sound has a slower speed at lower temperatures.  Answer the question:   When Dave screams outside he notices that the sound travels at different speeds in different temperatures. The sound travels slower when it is cold. or hot?
cold.
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Given the fact that:  Bigger waves have more energy.  Answer the question:   A taller wave on the ocean has more or less strength than a smaller wave?
more
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