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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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Geography, 25.06.2019 00:30, pablogonzaleztellez
Actions being undertake to address climate change in western europe include?
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Geography, 25.06.2019 00:30, toricepeda82
40 points discuss two ways that humans are impacting our earth. be sure to pick one way we are impacting our land, and one way we are impacting our water. then, create an action plan that includes a way that you and your family can protect the earth from these impacts.
Answers: 1
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