What is the central idea of the discussed passage?

What is the central idea of the discussed passage?

• A. Coral reefs are not affected by environmental changes
• B. Coral reefs are ecologically vital ecosystems confronting severe environmental threats that require urgent intervention
• C. Coral reefs are only important for tourism
• D. Coral reefs have a lifespan of several centuries

Answer: (B)

The central idea of the passage focuses on the significance of coral reefs as crucial ecosystems that are facing alarming environmental challenges. This viewpoint highlights not only the importance of coral reefs for biodiversity and marine life but also emphasizes the urgent need for intervention to protect these ecosystems from various threats such as climate change, pollution, and habitat destruction. By stating that coral reefs are ecologically vital, the passage underscores their role in supporting a multitude of marine species and maintaining ecological balance. The mention of "severe environmental threats" indicates that these ecosystems are at risk, thus reinforcing the idea that prompt action is essential to ensure their survival and, consequently, the health of the overall marine environment. This framing of coral reefs aligns with ongoing concerns in environmental science and conservation, making it the most comprehensive choice regarding the passage’s focus.

The central idea of the passage focuses on the significance of coral reefs as crucial ecosystems that are facing alarming environmental challenges. This viewpoint highlights not only the importance of coral reefs for biodiversity and marine life but also emphasizes the urgent need for intervention to protect these ecosystems from various threats such as climate change, pollution, and habitat destruction.

By stating that coral reefs are ecologically vital, the passage underscores their role in supporting a multitude of marine species and maintaining ecological balance. The mention of "severe environmental threats" indicates that these ecosystems are at risk, thus reinforcing the idea that prompt action is essential to ensure their survival and, consequently, the health of the overall marine environment. This framing of coral reefs aligns with ongoing concerns in environmental science and conservation, making it the most comprehensive choice regarding the passage’s focus.