Q. Which spacecraft first visited Mercury?

  • (A) Mariner 10
  • (B) Voyager 1
  • (C) Messenger
  • (D) Pioneer 11
✅ Correct Answer: (A) Mariner 10
Explanation: Mariner 10 was the first spacecraft to fly by Mercury in 1974-75.

Published by Mr. Dubey ⭐ 106.32K Points at 16-Jul-2025 01:49 pm in Geography

Explanation by: Mr. Dubey
Mariner 10 was the first spacecraft to fly by Mercury in 1974-75.

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