Understanding the Carbon Cycle

What is the chemical symbol for carbon?

• C

• Ca

• Co

• Cr

Which process allows plants to absorb carbon dioxide from the atmosphere?

• Decay

• Photosynthesis

• Combustion

• Respiration

What happens to plants after they die that contributes to the carbon cycle?

• They release oxygen

• They form fossil fuels

• They become water

• They evaporate

Which organisms in the ocean absorb carbon dioxide?

• Seaweed

• Coral

• Plankton

• Fish

What natural event can add extra carbon dioxide to the atmosphere?

• Earthquake

• Volcano

• Tsunami

• Hurricane