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  1. The Earth has one moon.
    Upvoted. resteemed.

The answer is 1. Earth has only one moon.

Officially, the answer is no. The Earth has a single moon. It's possible Earth had more than one moon in the past, upvoted

Two —
the moon plus the asteroid 2006 RH120 with a diameter of about 3 meters=))

the asteroid is a satellite more then a moon.. but your answer is counted correct also...