Geography
Geography, 07.11.2019 12:31, wolfsaway

What has happened in the last 50 years that would make the carbon dioxide levels change?

question options:

a) continents have moved and altered the air

b) decreased levels of ozone are found in the upper atmosphere

c) the changes in earthā€™s orbit due to milankovitch cycles

d) increased burning of fossil fuels by people

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Answers: 2

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What has happened in the last 50 years that would make the carbon dioxide levels change?

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