List 4 properties of gases

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases. as altitude increases, air density increases. air pressure and density are lowest at sea level. denser air exerts more pressure than less dense air.

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+