UPSC Prelims 2023 Question:

Which one of the following is the best example of repeated falls in sea level, giving rise to present-day extensive marshland?

Explanation:

• The Rann of Kutch is a vast salt marsh located in the Thar Desert of Gujarat, India. It is known for its unique ecosystem and is characterized by extensive marshy areas.
  
  
• The region has experienced multiple cycles of sea level fluctuations over time, leading to the formation of the marshland in the present day.
  
  
• The Rann was once a shallow part of the Arabian Sea until a geological shift closed off the connection with the sea. The region became a seasonal marshy salt desert over the years. During monsoons, the region fills up with water and forms a wetland. In the summer the water dries to create a bed of white salty land. 
  
  

Therefore, option (4) is the correct answer. 

Subject: Geography | Miscellaneous(geo)