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What is thought to have caused the mass extinction at the end of the cretaceous period?
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And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?
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What part of the brain is highlighted in the diagram below?
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What is responsible for the uneven heating between the poles and the equator on any given day
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The use of enzymes is necessary to increase the activation energy requirements of a chemical reactio...
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