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The term "atmosphere" means 'all living things?'
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Geography, 22.06.2019 14:40, thezbell
Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite
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Where does the availability of water pose the greatest problem
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The term "atmosphere" means 'all living things?'...
Mathematics, 21.05.2020 20:57