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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, 23.06.2019 08:30, anthony925513
Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia
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Geography, 23.06.2019 13:00, nemalmaqsoodp53nhh
Describe the characteristics of the nile river and the river’s importance to the people of egypt. write a paragraph of at least 5 complete sentences.
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