Density

#5. Density at the surface will be low when:

• APressure is high and temperature is high.
• BPressure is high and temperature is low.
• CPressure is low and temperature is low.
• DPressure is low and temperature is high.

#1. Consider the following statements relative to Air Density and select the one which is correct:

• ABecause air density increases with decrease of temperature, air density must increase with increase of height in the International Standard Atmosphere (ISA..
• BAt any given surface temperature the air density will be greater in anticyclonic conditions than it will be when the MSL pressure is lower.
• CAir density increases with increase of relative humidity.
• DThe effect of change of temperature on the air density is much greater than the effect of change of atmospheric pressure

#2. The tropopause in mid latitudes is:

• ALower in summer with a lower temperature.
• BLower in winter with a higher temperature.
• CLower in summer with a higher temperature.
• DLower in winter with a lower temperature.