Answers: 3
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
Geography, 22.06.2019 15:00, williamnason123
For one week be an inventor and write down ideas for products or services that you think should be produced
Answers: 2
Geography, 23.06.2019 17:30, Alexandragurule18
Plz 98 points so i need 5 paragraphs of a fake article for the threat of pollution in asia i have examples look at those first and i would enjoy if you had word or grammerly and did it on there you very much
Answers: 1
A water feature that could be a source of groundwater for humans is found at a location on a hillsid...
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Mathematics, 30.08.2019 00:30
History, 30.08.2019 00:30