The student learns that carbon dioxide is stored in Earth’s mantle. Which part of the carbon cycle diagram shows the carbon dioxide from the mantle being cycled to another sphere of Earth?

A
the arrow pointing from the plant, which is part of the biosphere, to the soil, which is part of the geosphere
B
the arrow pointing from the plant, which is part of the biosphere, to the animal, which is also part of the biosphere
C
the arrow pointing from the volcano, which is part of the geosphere, to the atmosphere
D
the arrow pointing from the coal, which is part of the geosphere, to the factory, which releases emissions into the atmosphere

1 answer

The carbon dioxide stored in Earth's mantle is typically released into the atmosphere through volcanic activity. Therefore, the part of the carbon cycle diagram that shows carbon dioxide from the mantle being cycled to another sphere of Earth would be:

C: the arrow pointing from the volcano, which is part of the geosphere, to the atmosphere.

This option illustrates the process of volcanic eruptions releasing carbon dioxide from the Earth's mantle into the atmosphere.