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Which of the following statements about wildfires in deciduous forests is not true? |
Deciduous forests are unaffected by wildfires. |
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A prescribed burn is _______. |
a controlled fire used to manage forest ecosystems |
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Wildfires benefit forest ecosystems by _______. |
all of the above |
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What is the effect of wildfires on biodiversity? |
temporary decrease, but long-term increase |
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As a result of wildfires, _______ in grasslands. |
grass growth increases |
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Historically, wildfires were viewed as detrimental to forest ecosystems. |
True |
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How does wildfire help restore soil nutrients? |
Wildfires break down organic material faster than decomposition, thus renewing soil nutrients more quickly. |
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Which of the following is not a benefit of wildfires to ecosystems? |
habitat loss |
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Fire ecology is _______. |
the study of how fire affects ecosystems |
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Why have forest fires in ponderosa pine forests become more damaging to that ecosystem than they were historically? |
Following a policy of fire suppression in these forests makes fires burn hotter. |
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Which of the following statements about prescribed burns is true? |
Prescribed burns can help maintain healthy ecosystems. |
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The first step in restoring pine woodlands is prescribed burning. |
True |
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Prescribed burns are used to _______. |
all of the above |
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How are the benefits of wildfires in grasslands and northern forests similar? |
increased food production for grazers |
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How are the benefits of wildfires in deciduous and northern forests similar? |
increased nutritional value of growth |
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Which of the following statements about wildfires is true? |
Wildfires allow certain plant types to reproduce by cracking their seeds. |
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Wildfires open a new seedbed that can be used for new plant growth. |
True |
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Soil _______ as a result of wildfires in grasslands. |
improves |
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