Is Mercury a small planet?
Yes, Mercury is a small planet, it is actually the smallest planet.
Planet Mercury | Space School
How many days does it take Mercury to go around the sun once?
It takes Mercury 88 days to go around the sun once.
Can you live on Mercury?
No, you can not live on Mercury there is little air on Mercury.
Does Mercury have moons?
No, there is no moons on Mercury.