Q. Which gulf is the world's largest estuary?
Answer: Gulf of Saint Lawrence
Notes: Gulf of Saint Lawrence is the largest estuary in the world. It is the outlet of the North American Great Lakes via the Saint Lawrence river into the Atlantic Ocean, where freshwater and salt water mix together.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 50 in Physical Geography - Important Islands, Gulfs, Bays, Isthmuses, Glaciers, Canyons in above course in App.