Dkskskdkdkzkzkzzkzlzlzkzkzkzkzkzkzk zkzkzkzkzkzlz
...
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, 23.06.2019 11:30, dsaefong00
Which of the following can scientists estimate geologic time? a. observing rock sequences b. radiometric dating c. comparing fossils d. all of these
Answers: 1
Biology, 04.09.2019 16:20
Mathematics, 04.09.2019 16:30
Mathematics, 04.09.2019 16:30