Ch. 16
Applying the Concepts

<See the back of the chapter.>

Questions for Thought
 
 1. 	Clear nights allow a greater loss of infrared radiation by objects than cloudy nights. The air must be cold and calm to allow the water vapor to condense directly onto objects and 	freeze.

 6. 	(a) Clouds and cyclonic storms are associated with low-pressure centers. Obviously, low atmospheric pressure is associated with low-pressure centers as well. In the Northern Hemisphere, inward flowing winds wind around counterclockwise to a low-pressure center.  
(b) A high-pressure center has outward moving winds that wind around clockwise in the Northern Hemisphere. Higher atmospheric pressures and clear weather are associated with high-pressure centers.

10. 	A hurricane is a large, violent circular storm that is born over the warm, tropical ocean near the equator. As a hurricane approaches the air seems unusually calm as a few clouds appear, then thicken as the wind begins to gust. Over the next six hours or so the overall wind speed increases as strong gusts and intense rain showers occur. Thunderstorms, perhaps with tornadoes, and the strongest winds occur just before the 	winds suddenly die down as the sky clears with the arrival of the eye of the hurricane. It takes the eye about an hour to cross, then the thunderstorms and high winds begin again, this time blowing in the opposite direction.

11. 	The tropical climate zone occupies the low latitudes and overall is hot. The polar climate zone occupies the regions near the poles and is generally extremely cold. The temperate climate zone is located between the tropical and polar climate zones and has high and low temperatures that range between their two extremes.

<Attached Questions>

 1.  T
 2.  T
 5.  F
 7.  F
 9.  T
10.  T
11.  d
12.  a
13.  c
14.  d
17.  a
18.  b
20.  a
23.  b
26.  d
27.  a
28.  b
29.  d