1
It is the weight of the air above the Earth's surface.
2
Areas of high pressure.
3
Areas of low pressure.
5
It is a layer of gases that surrounds the Earth.
6
We measure atmospheric pressure with a ...
7
The units of measurement are...
8
Depressions often bring... weather.
9
They are lines on a weather map that connect places with the same pressure.
10
Anticyclones normally bring... weather.
11
The mix of gases in the atmosphere is called...