 · Plants take in CO2, sunlight, and water to make food (photosynthesis). This carbon is used for energy. Some is stored for growth.  · Animals get.

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Presentation transcript:

 · Plants take in CO2, sunlight, and water to make food (photosynthesis). This carbon is used for energy. Some is stored for growth.  · Animals get the carbon from eating plants or from eating animals that eat plants.  · Animals and plants put CO2 back in the atmosphere during respiration (The process of converting food to energy using oxygen and giving off CO2)

 When plants and animals die, decomposers break down the carbon compounds in the bodies of the decaying matter. The decomposers use some of the carbon for their own bodies, while the rest is returned to the atmosphere through respiration.  · When some plants die, they become buried and cemented over time. After millions of years, some become fossil fuels.

 When fossil fuels are extracted from the earth and burned, CO2 is released into the atmosphere.  Other carbon sources are animals, forest fires, and volcanic eruptions.

 A place on earth where carbon is stored/absorbed is called a “sink”. The following are all places on earth that store carbon: 1. Water Surface and deep ocean* 2. Plants and trees* 3. Atmosphere 4. Fossil Fuels 5. Rocks (carbonates like limestone) 6. Soil 7. Shells (contain CaCO3, calcium carbonate)