Chapter 14 Test 2.docx

 Question 1 2 out of 2 points Winds promote the spread of wildfire by Selected Answer: b. all of these Answers: a. transporting firebrands downwind, igniting spot fires. b. all of these c. supplying oxygen-rich air to replenish oxygen consumed during combustion. d. tilting flames over the top of unburned areas, heating the fuels beneath. e. none of these  Question 2 2 out of 2 points The same factors that lead to drought in southern Asia and Africa also affect monsoonal climates in other parts of the world such as Selected Answer: e. Australia. Answers: a. western Europe. b. northern Asia. c. southwestern North America. d. none of these e. Australia.  Question 3 2 out of 2 points The highest priority for wildfire management officials is to preserve Selected Answer: b. human life.

Answers: a. buildings and structures. b. human life. c. infrastructure. d. natural resources.  Question 4 2 out of 2 points One of the many factors that determine whether a person will develop a heat-related illness has to do with their physical condition and level of activity. Physical condition directly relates to Selected Answer: e. the ability to radiate heat once a person becomes overheated, which is related to the surface area of the body compared to the volume of the body. Answers: a. an individual’s heat tolerance. b. none of these c. overall health; those individuals with underlying health problems are more likely to suffer heat-related illness. d. all of these e. the ability to radiate heat once a person becomes overheated, which is related to the surface area of the body compared to the volume of the body.  Question 5 2 out of 2 points Heat stress is a condition that occurs when the human body cannot cool itself sufficiently. Heat exhaustion is manifested by extreme sweating, weakness, muscle cramps, a fast pulse, and breathing difficulty. Heat exhaustion begins when the body core temperature reaches Selected Answer: b. 102.2 °F. Answers: a. 103.3 °F. b.

102.2 °F. c. 100.1 °F. d. 101.1 °F. e. 104.5 °F.  Question 6 2 out of 2 points In an effort to reduce the risk of wildfire, some communities have Selected Answer: b. all of these Answers: a. established permanently maintained fire breaks. b. all of these c. intentionally set fires to consume fuels. d. established goat herds to feed on underbrush. e. none of these  Question 7 2 out of 2 points Natural causes of wildfire include Selected Answer: c. all of these Answers: a. lava and pyroclastic flows. b. lightning strikes. c. all of these d. spontaneous combustion.

e. meteorite impacts.  Question 8 2 out of 2 points The most severe droughts occur in Australia in association with El Niño events, and are manifested as decreases in rainfall along Selected Answer: a. the northeastern and eastern coasts. Answers: a. the northeastern and eastern coasts. b. the northwestern and western coasts. c. the southwestern and southern coasts. d. the southeastern and southern coasts.  Question 9 2 out of 2 points Heat-related illness, and death occurred with much greater frequency in the United States prior to the early 20 th century, but are much less common today as a result of Selected Answer: c. air conditioning. Answers: a. recognition of the signs of heat stress and taking immediate action. b. advanced medical treatments that are able to reverse the effects of heat stress quickly. c. air conditioning. d. cooling of the climate.  Question 10 2 out of 2 points Megadroughts are droughts that Selected Answer: a. persist over periods in excess of twenty years. Answers: a.

persist over periods in excess of twenty years. b. persist over a period of up to two years. c. form as a result of exceptionally low amounts of precipitation compared to regular drought conditions. d. occur over large areas.  Question 11 2 out of 2 points Which type of natural disaster has led to more fatalities, displaced more people, and triggered more wars than any other type of natural disaster? Selected Answer: b. droughts Answers: a. none of these b. droughts c. earthquakes d. hurricanes e. tsunamis  Question 12 2 out of 2 points How do drought conditions affect heat waves? Selected Answer: d. Dry vegetation and dry soils absorb heat more readily than if they were moist. The absorbed heat radiates back to the atmosphere, exacerbating the effects of the heat. wave. Answers: a. all of these b. The lack of precipitation during a drought means there is little cloud cover, promoting radiative cooling to the clear atmosphere and diminishing the effects of heat waves. c.

none of these d. Dry vegetation and dry soils absorb heat more readily than if they were moist. The absorbed heat radiates back to the atmosphere, exacerbating the effects of the heat. wave. e. Drought conditions are accompanied by low relative humidity; dry air cannot absorb heat as readily as moist air.  Question 13 2 out of 2 points The western portion of the United States experiences alternating periods of wet and dry years; the major control is Selected Answer: a. the orientation of the jet stream in the atmosphere. Answers: a. the orientation of the jet stream in the atmosphere. b. the number of mid-latitude cyclones that occur over a period. c. all of these d. the number of Pacific-origin storms that blow ashore. e. none of these  Question 14 2 out of 2 points Flames, which are the familiar visible part of fire, consist of glowing superheated gases including Selected Answer: d. carbon dioxide and carbon monoxide. Answers: a. hydrogen. b. sulfur dioxide. c. all of these d.

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