The white saline surface of Rann of Kachchh is explained by which process?

Correct answer: Evaporation and salt deposition after seasonal waterlogging

The direct answer is A: evaporation and salt deposition after seasonal waterlogging. The Rann of Kachchh is a low, saline marshy plain. During the wet season, water covers parts of the area. When the hot season arrives, strong evaporation removes the water but leaves dissolved salts behind. Repeated wetting and drying can create the familiar bright white salt crust. A is correct because it describes the complete physical process. B is wrong because glaciers are not the process forming this saline plain. C is wrong because basaltic lava would produce volcanic rock, not a seasonal salt surface. D is wrong because fallen mangrove leaves cannot explain a broad white salt deposit. The important sequence is seasonal waterlogging, evaporation, then salt accumulation. Memory cue: Rann means saline marsh and white salt flats.