Reference no: EM131683003

1. In classifying air masses, the cold, dry masses are called

2. Tornadoes are always characterized by _______ pressure

3. Of the regions of the United States, which has the highest incidence of tornadoes?

4. A weak, migratory low pressure trough which is common in low latitudes (tropics) is often called a/an ___________.

5. Calm, fair weather in the U.S. is most likely to result from a/an ________.

6. Of the list below, the coldest air is associated with a/an ______ air mass.

7. When neither air mass displaces the adjacent one, their boundary is called a/an _______ front.

8. In an occluded front, the warm air sector is _________.

9. The energy source of hurricanes is ______.

10. Fronts are located __________.