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Prelims 2025 · Q23 · Seas, straits & water bodies

Consider the following water bodies :

  1. I.Lake Tanganyika
  2. II.Lake Tonlé Sap
  3. III.Patos Lagoon

Through how many of them does the equator pass?

Show answer

Answer: D. Lake Tanganyika lies about 3°S to 9°S in East Africa, south of the equator. Lake Tonlé Sap in Cambodia lies near 12–13°N. Patos Lagoon in southern Brazil lies near 31°S. So the equator passes through none of them.

Watch for: Lake Tanganyika is in equatorial Africa, but the equator crosses Lake Victoria, not Tanganyika.

Why the other options are wrong
  • A. Wrong because the equator does not pass through any of them.
  • B. Wrong because the equator does not pass through any of them.
  • C. Wrong because all three lie well away from the equator.

Source to check: Oxford School Atlas

Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.