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Assessment
What is the primary role of carbon dioxide in the Earth's atmosphere?
To trap heat and contribute to the greenhouse effect
To provide oxygen for respiration
To form ozone in the stratosphere
To filter out UV radiation
Which human activity is the largest source of increased carbon dioxide in the atmosphere?
Deforestation
Burning fossil fuels
Agriculture
Waste disposal
What consequence does increased carbon dioxide in the atmosphere have on ocean waters?
Increased acidity in ocean waters
Lower sea levels
Reduction of marine biodiversity
Increased oxygen levels in water
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