Critical reading – forest fires and old-growth stands The passage explains crown fires leap across treetops in thickets, but in old-growth forests, shade suppresses saplings and lower branches are too high to ignite. What statement is best supported?
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Aforest fire damage is reduced in old-growth forests.
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Bsmall trees should be cut down to prevent forest fires.
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Cmature trees should be thinned out to prevent forest fires
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Dforest fires do the most damage in old-growth forests.
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Eold-growth forests have a larger accumulation of forest debris.
Answer
Correct Answer: forest fire damage is reduced in old-growth forests.
Explanation
Introduction / Context:The paragraph contrasts conditions that enable crown fires (dense young growth) with structural features of old-growth stands (high canopies, shade that suppresses understory) that impede treetop spread.
Given Data / Assumptions:
- Crown fires are devastating when they jump treetop to treetop.
- Old-growth shade prevents thickets of small trees.
- Lower branches in mature trees are too high to catch flames easily.
Concept / Approach:Select the option that directly reflects the described fire behavior in old growth: reduced potential for crown fire spread implies reduced damage relative to younger stands.
Step-by-Step Solution:Link cause and effect: fewer ladder fuels and higher branches → harder for fire to crown.Conclude: damage is reduced in old-growth conditions.Reject options that prescribe actions (cutting or thinning) or contradict the described protection.
Verification / Alternative check:If crown fires are the most devastating and old growth resists crowning, it follows that damage is mitigated in old growth.
Why Other Options Are Wrong:
- B/C: Prescriptions not stated.
- D: Opposite of the point.
- E: Debris accumulation is not asserted.
Common Pitfalls:Confusing management recommendations with textual support; the passage is descriptive, not prescriptive.
Final Answer:forest fire damage is reduced in old-growth forests.