Answer before friday september 6,2019
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Geography, 22.06.2019 14:40
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 19:00
How many structures do prokaryotic cells have in common with the eukaryotic cells? a. 2b. 3c. 4d. 5
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Geography, 23.06.2019 21:20
Hey! can anyone me out with my homework? it will be very much appreciated! and !
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Geography, 24.06.2019 04:30
Ineed , i need to create a power point in life science here is a picture explaining a little what the topic is about, me with some information for my slides : (
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