naples341765 naples341765

15-12-2017
Biology

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What is true about Earth's atmosphere? A) It has always had the same composition. B) It has and always will continue to change. C) It has not changed in the past will change in the future. D) It has changed in the past but will not change in the future.

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avalianagames avalianagames

15-12-2017

Answer is B, hope that helps!
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