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4
2
Venus
Mars
Mercury
Mercury has no atmosphere(air). The night side is verycold and the day side isvery hot.
Venus is covered in clouds.Its surface is hot enough to melt metal!
Mars has the largest volcanoin the entire solar system.Olympus Mons is as tallthree mountains on the Earth stacked together.
Earth
3 Earth is special because ithas life including plants,animals, and people.
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