Wednesday 28th December 2022
Difficulty: Medium
Planets I (Quiz #40)
Mars 2020 selfie containing both Perseverance rover and Ingenuity (NASA)
The Solar System has eight known planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
1. Which of the planets in the solar system has the highest density?
2. Which of the following is NOT true?
3. On how many planets have exploration landers (robotic or manned) successfully been landed (not just crashed)?
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