UPSC CSE Prelims
Question 90
The most important fishing grounds of the world are found in the regions where
View correct answer and explanation
Correct answer: C
Correct Option: C
Explanation: Major fishing grounds develop where warm and cold ocean currents meet, supporting nutrient supply, plankton growth and abundant fish.
Option-wise Analysis:
A: Incorrect - Wrong: convergence of atmospheric air currents is not the defined marine mechanism.
B: Incorrect - Wrong: river mouths can be productive locally, but do not explain the world’s chief fishing banks.
C: Correct - Correct: warm–cold ocean-current interaction often promotes biologically productive fishing zones.
D: Incorrect - Wrong: an uneven continental shelf alone is not the main worldwide explanation.
Review Note: Productive continental shelves and nutrient upwelling are equally important; meeting currents is the intended option, not a universal necessary condition.