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1
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all life on the planet
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2
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Earth's movement around the sun
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3
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point at which the Earth's poles are at their greatest angle towards and away from the sun
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4
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atmospheric conditions over a long period of time
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5
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the atmosphere's ability to trap heat; keeps the planet warm
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6
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energy from the sun that reaches Earth as heat and light
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9
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dry
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10
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layer of gases surrounding Earth
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16
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atmospheric conditions at a given place and time
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18
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Earth spinning on its axis
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20
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point in the year in which the Earth's poles are not pointing toward or away from the sun
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21
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the sun and group of bodies that revolve around it
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