Question

UPSC Prelims 2024 Question:

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 Russian Federation

Answer (Detailed Solution Below)

Option 1: Canada and the United States of America

Detailed Solution

Explanation:

The longest land border between two countries is the border between Canada and the United States, which is 8,890 kilometers long. This includes the border between Alaska and northern Canada, as well as the border between Canada and the continental United States.
Other long borders between countries include:
- Russia and Kazakhstan: 6,846 kilometers
- Chile and Argentina: 5,308 kilometers
- India and Bangladesh: 4,142 kilometers

Therefore, option (1) is the correct answer.

Subject: Geography | Mapping

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