Health, 20.04.2021 18:50, samlolomg123

Studies show that volcanoes emit about 130 to 380 million metric tons of carbon dioxide (CO2) per year.
Which question can best help scientists determine if either volcanic eruptions or human activities are the main cause of the increasing CO2 levels shown in Graph 2?
A
How many active volcanoes are there on Earth?
B
Is there more carbon in limestone and rock deposits or in coal, oil, and gas deposits?
C
Does the rate of combustion for fossil fuels occur faster than a volcanic eruption?
D
How has the emission of greenhouse gases from human activities changed over time?

Answers: 1

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Studies show that volcanoes emit about 130 to 380 million metric tons of carbon dioxide (CO2) per ye...