Civil Services UPSC CAPF (Assistant Commandants) Test Series 2025 General Knowledge Geography (World Geography) Biogeography
Which one of the following best describes the geomorphic condition for the formation of alluvial fans?
1
Formation occurs when a high-velocity river enters a confined canyon.
2
They are formed where rivers from highlands suddenly enter flat plains and lose velocity.
3
Alluvial fans are built by wind-blown sediments accumulating against cliffs.
4
They typically develop on coastlines due to tidal wave deposition.