Carbon Cycle

All of the carbon in existence is continually recycled in the carbon cycle

• True
• False

Which of the following removes carbon from the atmosphere?

• Combustion

• Cellular Respiration

• Photosynthesis

Organisms that do not decompose can be buried and become what?

• water
• nutrients
• air
• fossil fuels

How do animals get carbon?

• By eating plants and or other animals.

• They absorb it from the atmosphere.

• From the ground

• They do not get carbon from anywhere.

When humans EXHALE, we release __________________.

• Oxygen

• Carbon Dioxide

• Nitrogen

• Water

Which of the following are fossil fuels?

• Coal, water, oil

• Oxygen, coal, oil

• Coal, Oil, Natural Gas

• None of the above

Where can you find carbon?

• Only in Earth's atmosphere

• Inside all water molecules

• Inside the sun

• Inside every living thing on Earth

When humans burn fossil fuels, most of the carbon quickly enters the _______________________ as carbon dioxide.

• Water

• Atmosphere

• Sun

• Ground

Carbon enters the soil through dead plant or animal matter.

• Decomposition

• Respiration

• Photosynthesis

• Diffusion

Combustion is another word for _______________.

• a train
• a bus
• a dog
• burning