In terms of density and humidity, which conditions characterize a high-pressure area?
high density, high humidity
high density, low humidity
low density, high humidity
low density, low humidity
Answers
Answer:
Hope this will help u
Explanation:
Increased humidity (absolute humidity not relative humidity) will always lower air pressure. Furthermore the 2nd main constituent of air is molecular oxygen. 2 oxygen atoms have a molecular mass of 32. Much higher than that of water vapor.
Other Effects of High Pressure
High-pressure systems are often relatively dry or low in humidity; since the air grows warmer as it sinks and becomes compressed, the amount of moisture it can hold increases, causing more evaporation of water at the surface and hence low humidity.
Low-pressure systems are associated with clouds and precipitation that minimize temperature changes throughout the day, whereas high-pressure systems normally associate with dry weather and mostly clear skies with larger diurnal temperature changes due to greater radiation at night and greater sunshine during the day.
The amount of water vapor in air influences the density. ... When vapor content increases in moist air the amount of Oxygen and Nitrogen are decreased per unit volume and the density of the mix decreases since the mass is decreasing. dry air is more dense that humid air!