Ocean acidification is a growing threat to marine ecosystems. What is the primary cause of this phenomenon?

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A Excessive plastic waste dissolving in seawater.
B The ocean absorbing excess carbon dioxide (CO2) from the atmosphere.
C Large-scale desalination plants releasing salt into the sea.
D Underwater earthquakes releasing acidic minerals.

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Answer: B. The ocean absorbing excess carbon dioxide (CO2) from the atmosphere.

Explanation: The ocean absorbs about 30% of human-produced CO2. When CO2 dissolves in water, it forms carbonic acid, increasing the water's acidity and harming shell-forming organisms like corals.

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Ocean acidification is a growing threat to marine ecosystems. What is the primary cause of this phenomenon?

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