Topic: Conservation, environmental pollution and degradation, environmental impact assessment
Q6. Examine the role of coral reefs in maintaining marine ecological balance. How are marine heatwaves affecting reef ecosystems globally? (10 M)
Difficulty Level: Medium
Reference: DTE
Why the question
Recent reports of large coral colonies surviving repeated bleaching events and growing concerns over marine heatwaves have highlighted the importance of coral reefs for marine ecosystem stability and climate resilience.
Key Demand of the question
The question requires examining the ecological role of coral reefs in maintaining marine balance and analysing the impact of marine heatwaves on reef ecosystems across the world.
Structure of the Answer:
Introduction
Briefly highlight the ecological significance of coral reefs as biodiversity hotspots and key components of marine ecosystems.
Body
- Role in marine ecological balance: Explain how coral reefs contribute to biodiversity conservation, food webs, coastal protection and ecosystem functioning.
- Impact of marine heatwaves: Discuss how rising ocean temperatures are affecting coral health, reef resilience and marine biodiversity globally.
Conclusion
Emphasise the need for climate-resilient conservation and ecosystem-based management to safeguard coral reefs and ocean sustainability.








