Photosynthesis Respiration Photosynthesis: Plants take CO 2 gas - - PowerPoint PPT Presentation

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Photosynthesis Respiration Photosynthesis: Plants take CO 2 gas - - PowerPoint PPT Presentation

Photosynthesis Respiration Photosynthesis: Plants take CO 2 gas from the air to make sugar. They use the sugar to make biomass (grow). Respiration: Plants, animals, and decomposers use biomass for energy. Respiration and decomposition


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Photosynthesis Respiration

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Photosynthesis:

Plants take CO2 gas from the air to make

  • sugar. They use the

sugar to make biomass (grow).

Respiration:

Plants, animals, and decomposers use biomass for energy. Respiration and decomposition release carbon back into the atmosphere, mostly as CO2 gas.

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Dissolves Escapes

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Dissolves: CO2 gas from the air dissolves in water and becomes a dissolved salt called bicarbonate. Escapes: Bicarbonate can become CO2 gas again, which escapes back into the air.

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Math of Carbon Cycle Flows 300 Years Ago

Based on the data, what hypotheses can you make about carbon in the atmosphere, biosphere and in the

  • cean 300 years ago?

Write your hypotheses for 300 Years Ago (increased, decreased, or stayed the same for each of the three lines)

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Math of Carbon Cycle Flows Present Day

Based on the data, what hypotheses can you make about carbon in the atmosphere, biosphere and in the

  • cean in the Present Day?

Write your hypotheses for the Present Day (increased, decreased, or stayed the same for each of the three lines)

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CO2 in the Atmosphere Changes Since the Year 1000

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Climate Change: Causes and Impacts

Human Activities More CO2 In Atmosphere Impacts of Climate Change More CO2 In Ocean More Energy In Earth System

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