Wildfires

25 July 2022
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10 test answers

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C) Early European settlers of North America brought the ability to use fire for heat, light, and cooking to Native Americans.
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Which of the following statements is FALSE about wildfires? A) Before humans evolved, fires that were ignited by lightning or volcanic eruptions would burn until they ran out of fuel or were extinguished naturally. B) Wildfires date back more than 350 million years when trees evolved and spread across the globe. C) Early European settlers of North America brought the ability to use fire for heat, light, and cooking to Native Americans. D) Some species of trees have seed cones that open only after a fire.
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D) Oxygen
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Which of the following is NOT required for a fire to burn? A) Carbon dioxide B) Heat C) Fuel D) Oxygen
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A) Fuel is heated, it loses water and is ready to be ignited.
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Which of the following best describes what happens during the preignition process in wildfire development? A) Fuel is heated, it loses water and is ready to be ignited. B) Fuel at the front of a fire is ignited. C) Gases heat and expand into fuel. D) Gases cool and contract to produce fuel.
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B) Fuel is ignited, leading to flames and smoldering.
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Which of the following best describes what happens during the combustion phase of wildfires? A) Fuel is heated and ready to be ignited. B) Fuel is ignited, leading to flames and smoldering. C) Fuel explodes causing the wildfires to extinguish. D) Fire reaches a source of water where it reacts strongly.
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E) Bedrock composition
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Which of the following is NOT an important indicator of whether a region is prone to wildfires? A) Humidity B) Topography C) Vegetation type D) Temperature E) Bedrock composition
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C) Crown fires
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Which of the following wildfire types is dominated by fires moving along treetops? A) Ground fires B) Surface fires C) Crown fires D) Tree fires
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C) Maine
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Which of the following locations in the U.S. has the lowest risk of wildfires? A) California B) New Mexico C) Maine D) Alaska
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B) Increased earthquake activity
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Which of the following is NOT an effect of wildfires? A) Increased landslide activity B) Increased earthquake activity C) Increased smog D) Decreased water quality E) Destroyed animal habitats
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E) Fires creates deeper river channels that reduce flooding hazards
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Which of the following is NOT an example of how wildfires are beneficial to the environment? A) May trigger a release of seeds for some species B) Remove surface debris for grasses C) Recycle nutrients in the ecosystem D) Increase the amount of plants that can grow E) Fires creates deeper river channels that reduce flooding hazards
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A) Too much fuel is available and needs to be removed to prevent a larger fire.
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Which of the following is a good reason for a prescribed burn? A) Too much fuel is available and needs to be removed to prevent a larger fire. B) Animals that are invading a habitat need to be moved to another location. C) Shrubland needs to be cleared for new housing. D) Vegetation on hillsides needs to be cleared before the rainy season.