Multiple choice

Which of the following is NOT a way that oceans influence Earth's ecosystems?

  1. they transfer heat around the world

  2. they provide renewable energy resources

  3. they provide a barrier to erosion

  4. they play a key role in the carbon cycle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While oceans provide many services, they do not act as a physical barrier to erosion; in fact, wave action is a primary cause of coastal erosion.

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