Multiple choice general knowledge science & technology

Which planet has the longest day?

  1. Earth

  2. Venus

  3. Mars

  4. Pluto
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Venus has the longest day in our solar system - it takes 243 Earth days to complete one rotation. This is longer than its year (225 Earth days). Venus rotates backwards compared to most planets.

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