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Mila [183]
3 years ago
7

Which of the processes is responsible for the change scientists observed in atmospheric concentrations of 12C, 13C, and 14C over

the last 200 years? Please choose the correct answer from the following choices, and then select the submit answer button.
Social Studies
1 answer:
34kurt3 years ago
7 0

Answer:

Burning of fossil fuels

Explanation:

Over the last 200 years, burning of fossil fuels has been the major source of carbon emission. Here, atmospheric concentrations of 12C, 13C, and 14C refers to the carbon isotopes (12C, 13C and 14C) and therefore the statement refers to carbon emissions. It is now no surprise that carbon concentrations in the atmosphere is responsible for the environmental changes and that fossil fuel burning is the reason behind increased atmospheric carbon concentrations as proven by scientific research.

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