Multiple choice

Which is the hottest planet?

  1. Pluto

  2. Venus

  3. Mercury

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

Venus is the hottest planet in our solar system with an average surface temperature of approximately 465°C (869°F), despite not being the closest to the Sun. This extreme heat is caused by Venus's thick atmosphere composed primarily of carbon dioxide, which creates an intense greenhouse effect. Mercury, although closer to the Sun, has no atmosphere to retain heat and experiences much more extreme temperature variations.

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