changesxnight
changesxnight
09-10-2015
Biology
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What makes a planet living
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Аноним
Аноним
09-10-2015
What makes a planet living is if it has living organisms on it. We define Mars as not living because we don't know if it contains life.
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Thaiteas
Thaiteas
10-10-2015
What makes a planet living is if it has biosphere.( or, living things on it)
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