The higher the altitude then the air pressure... * lower
higher
hotter
colder

Actually Welcome to the Concept of the Physics,

Since we know that, earth is surrounded by a atmosphere, hence on the surface we have high air density but at a higher altitude there is less air, thus pressure of air also less,

The higher the Altitude then lower the air pressure..

howdy howdy!

i'd say it would be galileo!

close lines strong magnet less close weaker