Quick practice
Question 1 of 5
The longest border between any two countries in the world is between:
A
Canada and the United States of America
B
Chile and Argentina
C
Kazakhstan and Russian Federation
D
China and India
Get unlimited practice with UPSC CSE - GS subscription
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go