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Account for the drivers and impact of marine heatwaves on marine Ecosystem Structure and ocean biodiversity in the world.

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.