Carbon in the Global Ecosystem

What are fossil fuels?

• Buried dead plants and animals

• Coal, oil, gas

• Fuel for cars and electricity for phones

• All of the above

Where do fossil fuels come from?

• Gas stations

• Power plants

• Dead organisms

• Decomposers

What does it mean that the Earth is a “closed ecosystem”?

• Carbon dioxide can enter and exit

• Carbon dioxide can enter, but not exit

• Carbon dioxide can exit, but not enter

• Carbon dioxide cannot enter or exit

c. Name a process that moves carbon from the air into living things (abiotic to biotic).

• Photosynthesis

• Cell respiration

• Eating

• Death

Name a process that moves carbon from living things to other living things (biotic to biotic).

• Eating

• Death

• Decomposition

• All of the above

Name a process that moves carbon from living things to the air.

• Photosynthesis

• Cell Respiration

• Burning fossil fuels

• Death

Burning fossil fuels for energy causes...

• a decrease in carbon dioxide in the atmosphere.

• an increase in carbon dioxide in the atmosphere.

• a decrease in oxygen in the atmosphere.

• an increase in oxygen in the atmosphere.

An increase in carbon dioxide in the atmosphere leads to...

• an increase in global temperatures.

• a decrease in global temperatures.

• unstable weather patterns.

• a decrease in photosynthesis.