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Answer:A.Of the terrestrial planets, Venus, Earth, and Mars have significant atmospheres.B. Mercury is the only planet in our Solar System that has no substantial atmosphere. Technically speaking it does have an extremely thin atmosphereC. Mercury is the only planet without any kind of atmosphere. It does, however, have an exosphereD. There are 8 planets and over 160 moons in the solar system. Of these, the planets Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune have significant atmospheres.hope this helps...