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Zorluk: KolayLogical Inferences

In forestry, controlled burns are deliberate fires used to clear underbrush and reduce the risk of larger, uncontrolled wildfires. In a study of a pine forest, ecologist Sarah Chen monitored plots that underwent controlled burns and plots left undisturbed. She observed that while the controlled burn plots had significantly lower accumulations of dry pine needles and fallen branches over a three-year period, the overall health and growth rate of the mature pine trees remained identical to those in the undisturbed plots. Which choice most logically completes the text?

  1. A
    Pine forests that do not undergo controlled burns will eventually experience a significant decline in the growth rate of mature trees.
  2. B
    The accumulation of dry pine needles and branches in the undisturbed plots directly caused a decline in the health of the mature pine trees.
  3. Controlled burns can reduce accumulations of potential wildfire fuel in pine forests without hindering the growth of mature trees.Cevap
  4. D
    Controlled burns are the most effective method for maintaining the health and maximizing the growth rates of all pine forests.

Cevap

Controlled burns can reduce accumulations of potential wildfire fuel in pine forests without hindering the growth of mature trees.
The text states that controlled burn plots showed a significant reduction in accumulations of dry pine needles and fallen branches (potential wildfire fuel) while the health and growth rate of the mature pine trees remained identical to the undisturbed plots. This directly supports the conclusion that controlled burns can successfully reduce these fuel accumulations without negatively impacting the growth of the mature trees.

Adım Adım Çözüm

1
Identify the key premises in the passage.
The passage establishes two main facts: first, controlled burns significantly reduce dry needles and branches (which represent potential wildfire fuel); second, the mature trees in these plots maintained the same health and growth rate as those in undisturbed plots.
Determining the factual parameters of the text is essential for drawing a direct, non-speculative inference.
2
Evaluate the choices to find a statement that synthesizes these facts without adding external assumptions.
The statement expressing that controlled burns reduce potential fuel accumulation without harming mature tree growth directly combines both observed outcomes.
A valid logical inference must be supported entirely by the text's premises.

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Logical Inferences
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Logical Inferences

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