UPSC Previous Year Question | Prelims GS | 2024

The longest border between any two countries in the world is between:

  1. Canada and the United States of America
  2. Chile and Argentina
  3. China and India
  4. Kazakhstan and the Russian Federation

Answer

Correct Answer

Canada and the United States of America

Explanation

The Canada–United States boundary is the world's longest international land border, extending for approximately 8,891 kilometres, including the Alaska–Canada section. The borders between Chile and Argentina, China and India, and Kazakhstan and Russia are all shorter. Therefore, the Canada–United States border is the correct answer.

Topics: geography, international boundaries, longest international border, world geography