In the Diagram Below, the Importance of the Erupting Volcano

question 9

Multiple Choice

In the diagram below, the importance of the erupting volcano at "B" for the global carbon cycle is that

• A)CO₂ dissolved in magma rises with the magma and is released from solution into the atmosphere as pressures decrease, warming the Earth.
• B)the heat from the erupting volcano warms the atmosphere to such an extent that it can no longer retain CO₂ in it, causing it to condense and cool the Earth.
• C)as the magma begins to cool when it reaches the surface, atmospheric CO₂ is absorbed into it, cooling the Earth.
• D)atmospheric CO₂ gets drawn into the volcanic caldera as soon as the magma exits the chamber, cooling the Earth.

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