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Other questions on the subject: Geography
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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
Answers: 2
![image](/tpl/images/cats/geografiya.png)
Geography, 22.06.2019 19:50, coolasslimm
Why did other countries want to have a part in what was occurring in southwest asia?
Answers: 3
![image](/tpl/images/cats/geografiya.png)
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