Geography, 28.09.2019 05:30 tashanicole
In the last question, i measured 1000 atoms of u-235 (parent) and 3000 atoms of pb-207 (daughter) in a mineral. if the half life of u-235 is 700 million years, then how old is the mineral? if the mineral came from an igneous rock, then how old is the rock?
Answers: 3
Geography, 22.06.2019 18:30, juniieb
Stone mountain was formed during the formation of the blue ridge mountains around 300-350 million years ago and is considered part of the appalachian mountains. it formed as a result of the upwelling of magma from within the earth's crust. this upwelling, or solidified to form the that became stone mountain.
Answers: 1
Geography, 22.06.2019 21:30, Coolcatfurzy
Name the river that forms a natural border between new york and new jersey and is the site where a passenger jet made a miraculous landing on january 15
Answers: 2
Geography, 23.06.2019 00:30, nadiarose6366
When it is a high tide in georgia, usa, where on earth is another place that is also experiencing a high tide
Answers: 1
In the last question, i measured 1000 atoms of u-235 (parent) and 3000 atoms of pb-207 (daughter) in...
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