Question

in addition to hot surface temperatures, which characteristic makes mercury different from earth?
mercury has rings.
mercury has no moon.
mercury has slow revolutions.
mercury has an atmosphere of carbon dioxide.

Explanation:

• Mercury has rings: Incorrect. Mercury does not have rings. Planets like Saturn are known for their prominent ring systems.
• Mercury has no moon: Correct. Mercury is one of the planets in our solar system that has no natural satellites (moons). Earth has one moon.
• Mercury has slow revolutions: Incorrect. Mercury has a relatively fast revolution around the Sun compared to some other planets. Its orbital period is about 88 Earth - days.
• Mercury has an atmosphere of carbon dioxide: Incorrect. Mercury has a very thin exosphere, not a significant atmosphere like Earth. And it is not composed mainly of carbon dioxide.

Answer:

Mercury has no moon.