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THE OXYGEN-CARBON DIOXIDE CYCLE.. Oxygen-Carbon Dioxide Cycle  Both are GASSES important to all living things.  Unlike water which always stays water,

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Presentation on theme: "THE OXYGEN-CARBON DIOXIDE CYCLE.. Oxygen-Carbon Dioxide Cycle  Both are GASSES important to all living things.  Unlike water which always stays water,"— Presentation transcript:

1 THE OXYGEN-CARBON DIOXIDE CYCLE.

2 Oxygen-Carbon Dioxide Cycle  Both are GASSES important to all living things.  Unlike water which always stays water, oxygen (O 2 ) and carbon dioxide (CO 2 ) convert back and forth as they cycle on the planet.

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5 ANIMAL CONTRIBUTION  During respiration (breathing), animals inhale oxygen (O 2 ) and convert it to carbon dioxide (CO 2 ).

6 PLANT CONTRIBUTION  During photosynthesis (the process where plants make food for themselves) plants breathe in carbon dioxide (CO 2 ) and exhale oxygen (O 2 ).

7 DECOMPOSERS  Dead organic material contains carbon dioxide (CO 2 ), so as decomposers break down the tissue, carbon dioxide is released into the atmosphere.

8 FOSSIL FUELS  Oil, Gas, Coal are examples. When these fuels are burned, they release carbon dioxide (CO 2 ) and water (H 2 O) into the atmosphere.

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