Biology, 21.02.2020 17:30 khristaviaaa
Think back to your knowledge of the carbon cycle. Some human activities increase the levels of CO2 in the atmosphere. In which year does CO2 concentration seem to make a pivotal turn? What are some human activities that could have influenced CO2 levels in this period?
THIS IS SCIENCE NOT BIOLOGY
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Think back to your knowledge of the carbon cycle. Some human activities increase the levels of CO2 i...
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