How are human activities disturbing carbon dioxide levels and affecting marine life?

Increased carbon dioxide levels have made the oceans more alkaline.

Increased carbon dioxide levels have made the oceans more acidic.

Increased carbon dioxide levels have led to the production of more oxygen.

Increased carbon dioxide levels have stabilized all ocean ecosystems.

Question

11 April, 17:36

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Declan Romero · Answer 1

I think the answer is Increased carbon dioxide levels have made the oceans more acidic.