UPSC · Prelims and Mains
Indian and World Geography
← Geomorphology and the EarthLakes, islands and coral reefs
- Lakes by origin: tectonic, volcanic (crater, caldera), glacial, fluvial (oxbow), lagoon, aeolian, artificial
- How water budgets explain lake contraction
- Island types: continental, oceanic (volcanic), coral
- Conditions for coral growth: temperature, depth, salinity, clear sediment-free water
- Reef types and atoll theories
