How is radioactive decay used to date sedimentary rocks?
the amounts of potassium and argon i...
How is radioactive decay used to date sedimentary rocks?
the amounts of potassium and argon in sedimentary rocks are measured.
the amounts of carbon-14 and nitrogen in sedimentary rocks are measured.
the amounts of unstable elements in each layer of the sedimentary rocks are compared.
the amounts of unstable elements in the volcanic layers above and below the sedimentary layers are measured.
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Which units ate used to measure both velocity and speed? check all that apply
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The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere
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Biology, 22.06.2019 11:00
What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.
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