Topic: Salient features of world’s physical geography.
1. Account for the drivers and impact of marine heatwaves on marine Ecosystem Structure and ocean biodiversity in the world. (250 Words)
Difficulty level: Moderate
Reference: Insights on India
Why the question:
The question is part of the static syllabus of General studies paper – 1. UPSC asked Question related to Ocean in 2019 (Ocean current and water masses), 2017 (Ocean salinity)
Key Demand of the question:
To write about to factors which lead to marine heatwaves and its impact on the ocean biodiversity.
Directive word:
Account – Give underlying reasons for the phenomenon/process and enumerate the impact
Structure of the answer:
Introduction:
Explain what Marine heatwaves is.
Body:
Write about the various factors that leads to marine heatwaves – Ocean current, Increasing sea temperature, Weak winds. Write the impact of marine heatwaves – impact on corals, habitat, species, and fisheries. Give examples from across the world.
Conclusion:
Conclude by summarising the above.
