My Teacher said me that surface of moon also deals with some pressure but how is this possible even if there is no air on the moon
On the moon, there's no air to breathe, no breezes to make wind.However, there is a very, very thin layer of gases on the lunar surface that canalmost be called an atmosphere. Technically, it's considered an exosphere.
In an exosphere, the gases are so spread out that they rarely collide with one another.Several elements have been detected in the lunar atmosphere. Detectors left by Apollo astronauts have detected argon-40, helium-4, oxygen, methane, nitrogen, carbon monoxide and carbon dioxide.
These gases can exert pressure
Also...note that..there will be pressure due to variious gravitational pull by earth,sunetc..this may also cause pressue difference