As Oceans Become More Acidic, the Shells of Tiny Sea

question 55

Multiple Choice

As oceans become more acidic, the shells of tiny sea snails tend to dissolve. This is a concern because:

• A) The snail shells provide material for jewelry making on south sea islands.
• B) The shells are ground up and used for fertilizer for agricultural crops.
• C) The snails are the base of a food web that supports entire polar ecosystems.
• D) More than one of these are correct.
• E) None of these answers.

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