CO2 was used during photosynthesis to make glucose. some of this glucose got trapped in biomass that transformed to fossil fuels from heat and pressure. give examples of the fossil fuels
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Card 9
Front
Algae formed in the sea. How did this impact carbon dioxide & Oxygen levels?
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Card 10
Front
How else was CO2 decreased?
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Card 11
Front
How were Nitrogen levels increased?
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Card 12
Front
What did methane /ammonia react with to be removed from atmosphere?