UPSC Geography: Physical Geography & Mapping

Physical Geography & Mapping

This lesson builds the physical geography foundation required for UPSC Prelims and Mains. Focus on understanding processes, not memorising isolated facts.

Core Concepts

• Earth structure: crust, mantle and core; major rock types.
• Plate tectonics, continental drift, earthquakes and volcanism.
• Geomorphic processes: weathering, erosion, deposition and landforms.
• Atmosphere: pressure belts, winds, jet streams, monsoon mechanism and cyclones.
• Oceans: currents, tides, salinity, marine resources and El Niño/La Niña.

Mapping Practice

Practise locating mountain ranges, passes, rivers, plateaus, deserts, seas, straits and important Indian physiographic features on an outline map. Connect every map location with one geographic or economic significance.

Prelims Focus

• Match landforms with their formation processes.
• Use maps to eliminate geographically impossible options.
• Revise Indian rivers, tributaries, drainage patterns and major passes.

Quick Revision

Remember the chain: process → landform → location → significance.