Evidence Exists That Atmospheric CO₂ Has Increased Over the Last

question 57

Multiple Choice

Evidence exists that atmospheric CO₂ has increased over the last several decades due to human activities. How do increased CO₂ levels affect the pH of Earth's waters?

• A)It does not affect the pH of Earth's waters, because atmospheric CO₂ is not located in oceans.
• B)Due to the formation of carbonic acid, increased CO₂ levels decrease the pH of Earth's waters.
• C)Due to the formation of carbonic acid, increased CO₂ levels increase the pH of Earth's waters.
• D)Due to the formation of carbonic acid, increased CO₂ levels cause Earth's waters to become neutral.

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