Geomorphology and the Earth
Lakes, islands and coral reefs
Practise 2 PYQsConcepts to cover
- Lakes by origin: tectonic, volcanic (crater, caldera), glacial, fluvial (oxbow), lagoon, aeolian, artificial
- Lake decline and drying: siltation, diversion and human withdrawal (Aral Sea, Lake Chad, Lake Faguibine)
- Island types: continental, oceanic (volcanic), coral
- Conditions for coral growth: temperature, depth, salinity, clear sediment-free water
- Fringing reef, barrier reef, atoll; Darwin's subsidence and Daly's glacial control theories
Where to study
Certificate Physical and Human Geography · Goh Cheng Leong
- ch. 9, Lakes
- ch. 11, Islands and Coral Reefs
Fundamentals of Physical Geography, Class XI, chapter 6: Landforms and their Evolution (Reprint 2026-27)
- ch. 6, oxbow, p. 5 (book page 51)
Fundamentals of Physical Geography, Class XI, chapter 3: Interior of the Earth (Reprint 2026-27)
- ch. 3, caldera, p. 7 (book page 24)
Fundamentals of Physical Geography, Class XI, chapter 12: Water (Oceans) (Reprint 2026-27)
- ch. 12, Atoll, p. 5 (book page 103)
Exploring Society: India and Beyond, Class VI, chapter 2: Oceans and Continents (2024)
- ch. 2, Islands, p. 10 (book page 36)