📘 Geography Optional – Paper I (Advanced Series)

Page 33 – Advanced Oceanography (Analytical Focus)

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Q1. Explain Thermohaline Circulation and its global significance. (20 Marks)

• Temperature & salinity gradients
• Global conveyor belt concept
• North Atlantic Deep Water formation
• Climate regulation role

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Q2. Critically examine factors influencing ocean salinity. (15 Marks)

• Evaporation & precipitation
• River inflow
• Enclosed seas
• Latitudinal variation

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Q3. Discuss Coral reefs – formation, distribution & threats. (20 Marks)

• Fringing, Barrier & Atoll types
• Darwin’s subsidence theory
• Coral bleaching
• Climate change impact

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Q4. Evaluate role of ocean currents in climate modification. (15 Marks)

• Warm vs cold currents
• Gulf Stream & Western Europe
• Upwelling zones

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Q5. Explain causes & impacts of Tsunamis. (15 Marks)

• Submarine earthquakes
• Plate tectonics linkage
• Indian Ocean 2004 case study

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Q6. Discuss Continental Drift & Seafloor Spreading evidences. (20 Marks)

• Magnetic stripes
• Mid-oceanic ridges
• Plate boundaries
• Modern tectonic synthesis

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Q7. Examine Marine resources & sustainable exploitation. (15 Marks)

• Fisheries
• Offshore oil & gas
• Deep sea mining

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Q8. Explain Coastal geomorphic processes. (15 Marks)

• Wave erosion
• Longshore drift
• Sea cliffs & beaches

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Q9. Assess Ocean acidification and its consequences. (15 Marks)

• Carbon absorption
• pH decline
• Impact on marine biodiversity

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Q10. Write short notes on: (10 Marks)

• EEZ (Exclusive Economic Zone)
• Upwelling
• Marine Heatwaves

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📊 Page 33 Complete | Total Questions So Far: 330 / 1000