Chapter 29 Extra Credit                      (4pts.)

 

1.    A huge section of the lower troposphere which has the same kind of weather throughout is called a(n) ________________.

 

2.    Air masses are named for their _______________.

 

3.    While an air mass passes through an area, the weather in that area is like the weather of the region where the air mass ________________.

 

4.    If the ground surface is colder than the air mass passing over it, the bottom layer of air will be cool and ______________.

 

5.    If the ground surface is warmer than the air mass passing over it, visibility in the area will be __________________.

 

6.    The balloon-carried package of instruments used to measure conditions at high levels in an air mass is called a(n) _____________.

 

7.    The boundary between two air masses is called a(n) _________________.

 

8.    Fronts almost always bring ________________.

 

9.    The direction in which air in a high moves is different in each ___________.

 

10.                       As a low becomes stronger, the pressure gradient ___________.

 

11.                       Surface temperatures _____________ after a warm front passes.

 

12.                       _______________ fronts are steeper than other fronts.

 

13.                       Another term for high pressure area is a(n) __________________.