How are Mercury and Earth's moon similar?

They both have the same rotation speed.
They both have very smooth surfaces.
They both lack atmospheres.
They both have active volcanoes.

The answer is they both lack atmosphere.

Earth’s moon rotation speed is 2,288 miles per hour, while Mercury’s is 10.882 per hour.

Mercury and the Earth’s moon both have rocky surfaces, not smooth surfaces.

Both have a lack of atmosphere. Earth has an atmosphere that is able to support life. Mercury and the Earth’s moon do not.

Both are too cold, so they are not able melt rock and create volcanos.

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The answer is c i just finished taking the test