How many years did the Great Barrier Reef record its largest annual coral loss?

• A. 31 years
• B. 39 years
• C. 45 years
• D. 50 years

Answer: (B)

The correct answer is based on the data collected and analyzed regarding the health of the Great Barrier Reef, which has been monitored over several decades. The record for the largest annual coral loss was documented over a span of 39 years, reflecting significant environmental changes, threats from climate change, and coral bleaching events that have impacted the reef's ecosystem. This timeframe provides a clear perspective on how long scientists have been observing trends in coral health and the implications of rising sea temperatures and human activity. Understanding this context enhances awareness of the ongoing challenges facing coral reefs globally and the importance of conservation efforts.