GSC102 TEST 2 H CARBONIFEROUS

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5 Terms

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Carboniferous snapshot

Pangaea assembling, Gondwana glaciated, O₂ ~30%, CO₂ declined, repeated sea-level changes make cyclothems

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Why so much coal?

High plant production, waterlogged oxygen-poor swamps, slow decomposition, repeated burial, stores carbon

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Why do giant arthropods need high O₂?

They breathe by diffusion and tracheal tubes

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Reproduction Revolution

Amniotic egg freed reproduction from standing water

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Coal story chain

Coal burial keeps carbon out of the air → lower CO₂, high O₂ → climate change + giant arthropods