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13 questions from this quiz
Trap heat from the sun
Methane and carbon dioxide
Farming, especially rice & cattle
Burning fossil fuels
Without it, Earth would be too cold
As CO2 rose, temperature increased
Farming rice in flooded fields
Electricity
Just a few degrees
Colder winters but hotter summers
Ice melting & seawater expanding
Changing migration routes & timing
Spring starting sooner
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