2024 GS Paper I, all questions

UPSC Prelims 2024 · GS Paper I

Question 79: Geography

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

aCanada and the United States of America
bChile and Argentina
cChina and India
dKazakhstan and Russian Federation

AnswerUPSC’s answer is (a).

The border between Canada and the United States, about 8,900 km including the Alaska stretch, is the longest between any two countries in the world. Kazakhstan and Russia share the second longest, and Chile and Argentina have a long north-south border along the Andes. India and China share a much shorter boundary. Remember: Canada-USA is the world's longest international border.

Why each option is right or wrong
  • (a) Right: Canada and the USA share the world's longest border.
  • (b) Wrong: Chile and Argentina share a long border, but it is shorter than Canada-USA.
  • (c) Wrong: China and India share a much shorter border.
  • (d) Wrong: Kazakhstan and Russia have the second longest border.

Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.

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Source: UPSC, Civil Services (Preliminary) Examination 2024, General Studies Paper I, Series A. The paper on upsc.gov.in.