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The earth's atmosphere is important because: select one: a. it is a stable and unchanging part of our global environment. b. it is composed of approximately twenty different layers. c. it is primarily composed of oxygen, essential for our survival. d. the densest outer layer shields the earth's surface from dangerous forms of energy. e. it protects us from uv radiation and x-rays.
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The earth's atmosphere is important because: select one: a. it is a stable and unchanging part of...
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