A a black metal measures 2 cm x 3 cm x 2.5 cm if it's much is 67.5 grams calculate its density

d=4.5  g/cm³

Explanation:

v=l x w x h

v=2 x 3 x 2.5

v=15 cm³

d=m/v

d=67.5/15

d=4.5  g/cm³

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.