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An example of a rapid change in conditions on earth is. a. continents moving b. tectonic plates shifting c. organisms adapting d. a meteor striking earth
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Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z
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How are isotopes of the same chemical element alike? how are they different?
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An example of a rapid change in conditions on earth is. a. continents moving b. tectonic plates shif...
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