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Which GHG is controlled mostly by the global carbon cycleQuestion 12AnswerA.ChlorofluorocarbonsB.OzoneC.OxygenD.Carbon Dioxide

Question

Which GHG is controlled mostly by the global carbon cycleQuestion 12AnswerA.ChlorofluorocarbonsB.OzoneC.OxygenD.Carbon Dioxide

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Solution

The greenhouse gas (GHG) that is mostly controlled by the global carbon cycle is D. Carbon Dioxide.

Here's why:

  1. The global carbon cycle involves the movement of carbon between the atmosphere, biosphere, oceans, and geosphere. It's a complex system of processes that governs how carbon is recycled and reused throughout the environment.

  2. Carbon dioxide (CO2) is a key component of this cycle. It's released into the atmosphere through natural processes like respiration and volcanic eruptions, as well as human activities such as deforestation and burning fossil fuels.

  3. Once in the atmosphere, carbon dioxide can be absorbed by plants during photosynthesis, by the ocean, or can be stored in the earth's crust. This absorption and storage process is known as carbon sequestration.

  4. Therefore, the concentration of carbon dioxide in the atmosphere is largely controlled by the global carbon cycle.

  5. The other options, Chlorofluorocarbons, Ozone, and Oxygen, are not primarily controlled by the carbon cycle. Chlorofluorocarbons are man-made compounds, while ozone is a naturally occurring gas in the atmosphere. Oxygen is part of the carbon cycle, but it's not a greenhouse gas.

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