This was a tricky one. You'd expect Mercury to be the hottest planet because it's the closest to the Sun, but in fact it's Venus! Because of it's think atmosphere packed with carbon dioxide, heat from the Sun is trapped, meaning temperatures on the planet can soar to 465ºC!
Mercury meanwhile is only around 430ºC.
Congratulations for answering the questions correctly!
The third digit for the code is 8
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