Question

The surface air pressure on the planet mars is about 0.007 atm. if you were standing on mars, the surface air pressure would be equivalent to a pressure of

Answer 1

Surface air pressure is a consequence of the weight of the air acting on its surface. For example, if you are standing on Mars, the pressure around you is what you call the surface air pressure. Thus, that surface air pressure must be 0.007 atm.