1) A mixture of gases that surrounds(circles) a planet or moon. a) atmosphere b) photosphere c) biosphere d) spherical e) hemisphere f) spherometer 2) half of a sphere a) photosphere b) spherical c) atmosphere d) spherometer e) hemisphere f) biosphere 3) shaped like a sphere a) spherometer b) photosphere c) spherical d) biosphere e) atmosphere f) hemisphere 4) part of Earth in which life exists including land, water, and air or atmosphere a) spherical b) hemisphere c) biosphere d) photosphere e) atmosphere f) spherometer 5) The inner layer of the sun's atmosphere a) spherical b) hemisphere c) biosphere d) atmosphere e) spherometer f) photosphere

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