Geography

Concepts to cover

1. Major fishing grounds: shallow shelves and mixing zones of warm and cold currents (Grand Banks, North Sea, Japan)
2. Ocean deposits: terrigenous, pelagic (calcareous and siliceous oozes), red clay, manganese nodules
3. Coral reef distribution: Great Barrier Reef; Indian reefs at Andaman and Nicobar, Gulf of Mannar, Gulf of Kachchh, Lakshadweep
4. Ocean energy and mineral resources: tidal, wave, offshore oil, placer sands