Wildfire-ND

24 July 2022
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31 test answers

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question
In an open and grassy pine savannah, fires _____.
answer
prevent the development of a hardwood forest
question
Which of the following is a result of the prescribed burning of an open and grassy pine savannah?
answer
Less-intense natural wildfires
question
In a grassy pine savannah, a longer interval between prescribed burns typically leads to _____.
answer
bigger woody species
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What component of weather is watched most closely when determining when to conduct a prescribed burn?
answer
Relative humidity
question
Which one of the following statements about prescribed burns is true?
answer
Some species of pine trees require fire to reproduce.
question
The Great Chicago Fire of 1871 is the deadliest fire in U.S. history.
answer
false
question
Wildfires are a phenomenon caused only by human interaction.
answer
false
question
Before a wildfire actually starts to burn, the fuel needs to be at a favorable temperature and humidity.
answer
true
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Large wildfires that occur regularly in a location every 50 to 100 years will not become established unless sufficient fuel is present.
answer
true
question
Fires will occur whether or not people start them, and humans play a relatively minor role in affecting large wildfires.
answer
true
question
Ignition by a lightning strike will always lead to a wildfire.
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false
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Flaming combustion usually involves higher temperatures than smoldering combustion.
answer
true
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Some of the heat in a fire is transferred by radiation.
answer
true
question
Convection in a wildfire adds more fresh air to fuel the flames.
answer
true
question
The presence of mountains has a very strong influence on wildfire activity in an area.
answer
true
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Weather, especially temperature, precipitation, relative humidity, and wind, has a dominant influence on wildfire.
answer
true
question
People on hillsides are usually safe from wildfires because the fires cannot climb hills.
answer
false
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Only people can prevent wildfires.
answer
false
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Even large crown fires are relatively easy to extinguish because those fires only burn the very uppermost parts of trees.
answer
false
question
Alaska and the Pacific Northwest have a low incidence of wildfires because it is too wet and too cold there.
answer
false
question
Florida is the only U.S. state that has never experienced wildfire.
answer
false
question
Global warming is expected to increase both the frequency and intensity of wildfires.
answer
true
question
Burning of plant material recycles nutrients in the system by quickly decomposing organic matter and allowing new plants to grow.
answer
true
question
in some areas, park rangers or other officials may intentionally set fires in order to manage the forests.
answer
true
question
Little can be done in the area of public education about wildfire due to the technical nature of that information.
answer
false
question
What is the fire approach currently used by the U.S. Forest Service based on?
answer
Tree ring studies.
question
You are a birdwatcher out for a hike in the Western U.S. and you find several black-backed woodpeckers. Which of the following is most likely to be true?
answer
The area you are in experienced a severe fire recently.
question
Why do the fire-chaser beetle and jewel beetle depend on burned forests?
answer
They lay eggs in burned trees.
question
You are an ecologist in Utah studying black-backed woodpeckers. If what has happened to populations of this species in California, Oregon, and South Dakota is also true for Utah, what has happened?
answer
The black-backed woodpecker population has been decreasing
question
Recent research indicates that which of the following is true?
answer
Low-intensity fires have no effect on severe fires.
question
Which of the following is true?
answer
Some plants depend on severe fires to germinate.