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Earth's polar regions have cold, dry climates because the sun's rays are at a ?
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Earth's polar regions have cold, dry climates because the sun's rays are at a ?...
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