2016 · Q20
Which one of the following is the correct sequence of the given planets in increasing order of their size (diameter)?
General KnowledgeGeography
- AMars - Venus - Earth - Mercury - Uranus
- BMercury - Mars - Venus - Earth - Uranus
- CMercury - Mars - Venus - Uranus - Earth
- DVenus - Mercury - Mars - Earth - Uranus
Explanation
The equatorial diameters are approximately: Mercury 4,879 km, Mars 6,779 km, Venus 12,104 km, Earth 12,742 km and Uranus 50,724 km. Arranged in increasing order of size this gives Mercury, then Mars, then Venus, then Earth, and finally Uranus as the largest of the five. Option (B) is the only sequence that follows this order. The other options misplace Earth, Venus or Uranus.