The figure below shows parts of the global carbon cycle.Which chemicals are also parts of the carbon cycle?
A)CO (carbon monoxide),C (graphite or diamond),and CO₃ (carbon trioxide)
B)CH₄ (methane),O₃ (ozone),and C (graphite or diamond)
C)CH₄ (methane),HCO₃- (bicarbonate),and CaCO₃ (calcite)
D)CO (carbon monoxide),CO₃ (carbon trioxide),and CaCO₃ (calcite)

Question

The figure below shows parts of the global carbon cycle.Which chemicals are also parts of the carbon cycle? 
A)CO (carbon monoxide),C (graphite or diamond),and CO₃ (carbon trioxide) 
B)CH₄ (methane),O₃ (ozone),and C (graphite or diamond) 
C)CH₄ (methane),HCO₃- (bicarbonate),and CaCO₃ (calcite) 
D)CO (carbon monoxide),CO₃ (carbon trioxide),and CaCO₃ (calcite)

Quizplus · Accepted Answer

Methane (CH₄) is a greenhouse gas and a component of natural gas that is released during natural processes such as decomposition of organic matter. Bicarbonate (HCO₃-) is a component of the ocean's dissolved carbon system and is derived from the dissolution of carbon dioxide (CO₂) in seawater. Calcite (CaCO₃) is a mineral form of calcium carbonate that is present in rocks and is formed through biological and geological processes. All three of these chemicals are part of the global carbon cycle.

The Figure Below Shows Parts of the Global Carbon Cycle