The white saline surface of Rann of Kachchh is a result of which seasonal process?

Correct answer: Evaporation and salt deposition after waterlogging

The Rann of Kachchh has a broad, flat surface containing saline mud and salt deposits. During the wetter part of the year, shallow water can cover parts of the low-lying plain. When the hot, dry season arrives, this water evaporates and leaves dissolved salts behind on the ground. These salts form the familiar white surface. Therefore, option A correctly explains the process. Glaciers, basaltic lava, and river meanders involve very different environments and cannot produce this seasonal salt-covered plain.

The reasoning is based on the balance between seasonal water and strong evaporation. Water entering the low basin dissolves or carries salts, and later evaporation removes the water but not the salt. The remaining crystals or crust reflect light and make the Rann appear white. This is why it is described as a saline plain rather than an icy, volcanic, or ordinary river landscape. Hence, evaporation and salt deposition after waterlogging provide the most complete explanation, making option A correct.