C1CSE One Learn

General Studies I · Subtopic

Effects of geographical change

Official syllabus

Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location-changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.

UPSC CSE 2026 notification

What this covers

Follow the effects of physical and ecological change through ecosystems, resources, livelihoods, settlements and infrastructure, with attention to uneven exposure and adaptive capacity.

Key ideas

  • Cascading effects
  • Hazard and risk
  • Ecosystem services
  • Livelihoods and infrastructure
  • Adaptation and risk reduction

Connected topics

Official wording is from UPSC's Civil Services Examination 2026 notification, the current baseline for CSE 2027 preparation. Always check the latest notification at upsc.gov.in. Scopes and key ideas are CSE One's study map and are being expanded.