Air And Air Mass Flashcards
What percent of the atmosphere is nitrogen
78%
What percent of the atmosphere is oxogen
21%
Why is the atmosphere important. List 5 examples
1) It provides the gases we need to survive
2) Keeps earth at survivable temp.
3) Keeps water warm enough to be a liquid
4) Protects us from the Suns harmful rays
5) Burns meteors in the atmosphere
What is weather
The condition of earths atmosphere at a particular place and time
What properties does air have
Air has mass, volume, density, and pressure
What is a barometer
A instrument that measures air pressure
What does denier air have
More air pressure
What are air masses
A large body of air that has similar temperatures and humidity.
What is humidity
It’s the amount of water vapor in the air.
What is a source region of air mass
It’s where air masses form
What are air masses classified in
Their classified in temperature and moisture
What type of air masses form over cold regions
Polar
What type of air masses form over warm regions
Tropical
What type of air masses form over water
Maritime
What is the atmosphere
The envelope of gases that surround the earth that makes life possible.
