1 .		The most useful model of how a midlatitude cyclone develops is known as the polar-front theory.   True  False
2 .		Fronts are boundary surfaces that separate air masses of different densities.   True  False
3 .		Midlatitude cyclones that form east of the Rockies have a tendency to first migrate in roughly an easterly direction and then travel a more northeastward path.   True  False
4 .		Cyclones form along fronts and proceed through a generally predictable life cycle.   True  False
5 .		On a weather map, occluded fronts are shown with blue triangular points on one side of a line and red semicircles on the other side of the line.   True  False
6 .		When compared to cold fronts, warm fronts have a greater slope and produce heavier precipitation over a larger area.   True  False
7 .		The first sign of an approaching warm front is often the appearance of nimbostratus clouds.   True  False
8 .		More often than not, the formation of a cyclone is initiated by the flow aloft in the vicinity of the midlatitude jet stream.   True  False
9 .		On the average, cold fronts are about twice as steep as warm fronts and travel slower than warm fronts.   True  False
10 .		In the classic polar-front model, cyclogenesis occurs when continental polar air clashes with maritime tropical air along a front.   True  False
11 .		Cyclogenesis is closely related to convergence aloft.   True  False
12 .		When a rapidly moving cold front overtakes a warm front, an occluded front is likely to form.   True  False
13 .		In a midlatitude cyclone, low pressure is centered at the apex of the "wave" where the fronts connect.   True  False
14 .		Precipitation associated with a cold front usually occurs along a narrow zone.   True  False
15 .		Surface airflow in a Southern Hemisphere midlatitude cyclone is counterclockwise.   True  False
16 .		On a weather map, the surface position of a warm front is shown by a red line with red semicircles protruding into the colder air.   True  False