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Correct in red pen.  The right-hand column on the second page will be graded by me.

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Earth is fortunate to fall in the "Goldilocks Zone" and be at just about the right temperature for life to exist.  However another major factor that supports life on our planet is our atmosphere.  Describe three reasons that EACH of our neighboring planets could not support life at their surfaces.  Use the following article in your response:   Chem Matters Article