A student researching coral reefs has taken the following notes:
• Coral reefs cover less than 1% of the ocean floor • They support approximately 25% of all marine species • Rising ocean temperatures cause coral bleaching • The Great Barrier Reef is the largest coral reef system, stretching over 2,300 km • Coral reefs provide coastal protection from storms and erosion
The student wants to emphasize the biodiversity supported by coral reefs. Which choice most effectively uses relevant information from the notes to accomplish this goal?
The Great Barrier Reef, the world's largest coral reef system, stretches over 2,300 kilometers along Australia's coast.
Despite covering less than 1% of the ocean floor, coral reefs support approximately 25% of all marine species.
Rising ocean temperatures have caused widespread coral bleaching, threatening reef ecosystems worldwide.
Coral reefs provide important coastal protection from storms and erosion for nearby communities.
Correct Answer: B
Choice B. The contrast between small coverage (1%) and huge biodiversity (25%) emphasizes biodiversity.