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What is a likely consequence of preventing prescribed burns to forest ecosystems?
a.
Natural wildfires will burn longer and hotter when they occur because there is more underbrush and fuel available.
b.
Forest ecosystems will remain healthier overall, due to retention of habitats.
c.
Home owners will be better protected against damage from natural wildfires.
d.
Natural wildfires will occur less frequently.
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a. Natural wildfires will burn longer and hotter when they occur because there is more underbrush and fuel available.
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Which of the following statements about wildfires is true?
a.
Wildfires allow certain plant types to reproduce by cracking their seeds.
b.
Natural wildfires should be prevented to maintain wildlife habitats.
c.
The loss of undergrowth caused by wildfires is detrimental to an ecosystem.
d.
All of the above
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a. Wildfires allow certain plant types to reproduce by cracking their seeds.
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The first step in restoring pine woodlands is prescribed burning.
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True
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Fire ecology is _______.
a.
an old branch of science
b.
a way for scientists to prevent accidental wildfires
c.
the study of how fire affects ecosystems
d.
all of the above
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C. the study of how fire affects ecosystems
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How does wildfire help restore soil nutrients?
a.
Wildfire kills off the soil organisms that consume soil nutrients.
b.
Wildfires restore soil nutrients by decreasing the amount of underbrush in forests that contribute to nutrient loss.
c.
Wildfires break down organic material faster than decomposition, thus renewing soil nutrients more quickly.
d.
All of the above
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c. Wildfires break down organic material faster than decomposition, thus renewing soil nutrients more quickly.
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How are the benefits of wildfires in deciduous and northern forests similar?
a.
increased tree quantity
b.
increased amount of lichens
c.
increased nutritional value of growth
d.
all of the above
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C. increased nutritional value of growth
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Which of the following is not a benefit of wildfires to ecosystems?
a.
habitat loss
b.
underbrush reduction
c.
new growth
d.
plant regeneration
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A. habitat loss
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Preventing all wildfires is necessary for maintaining healthy forest ecosystems.
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False
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How are forest fires beneficial to conifers like Jack Pines?
a.
Jack pine seeds are protected by forest fires.
b.
Pine cones are carried on the winds produced by forest fires.
c.
Forest fires release the seeds stored in Jack pine cones.
d.
All of the above.
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c. Forest fires release the seeds stored in Jack pine cones.
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How are the benefits of wildfires in grasslands and northern forests similar?
a.
increased tree quantity
b.
increased food production for grazers
c.
increased amount of lichens
d.
all of the above
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B. increased food production for grazers
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