Question

there is no Air on the Moon why

Answer 1

The gases in an atmosphere are held in place next to that planet or moon by something called ‘gravity‘. Gravity is what keeps things together in space – like stars and planets. It’s also the reason that things fall back down to the ground when you throw them up into the air. Gravity keeps us from falling off the Earth and it keeps the Earth orbiting around the Sun. We can’t see it or smell it or taste it and we can’t really feel it, even though it’s pressing us onto the Earth’s surface all the time!

So gravity keeps the gases in the Earth’s atmopshere next to our planet and stops them from disappearing off into space.


and moon lacks gravity

Answer 2

What little atmosphere the Moon has consists of some unusual gases, including sodium and potassium, which are not found in the atmospheres of Earth, Mars, or Venus.