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Difficulty: MediumWords in Context: High-Utility Vocabulary

Which choice completes the text with the most logical and precise word or phrase?

Answer:While many early environmental studies focused almost exclusively on the direct impacts of large-scale deforestation, recent conservation research has shifted toward investigating the more subtle effects of landscape alteration. In particular, ecologists are studying how habitat fragmentation can 【exacerbate】 the decline of native species by isolating smaller populations, thereby reducing genetic diversity and making them more vulnerable to localized extinction events.

Answer

exacerbate (or a synonym like accelerate, aggravate, or compound)
The correct answer must be a verb that logically connects habitat fragmentation with the worsening of an ongoing decline. The context states that fragmentation isolates populations, reduces genetic diversity, and increases vulnerability to extinction. Therefore, the missing word must mean to make worse, intensify, or speed up. Words like 'exacerbate' (to make a problem worse), 'accelerate' (to speed up), 'aggravate' (to make more serious), or 'compound' (to multiply or increase) fit this context precisely.

Step-by-Step Solution

1
Analyze the context of the sentence to determine the relationship between habitat fragmentation and the decline of native species.
The passage contrasts the direct impacts of deforestation with the more subtle effects of habitat fragmentation, noting that fragmentation isolates populations, reduces genetic diversity, and increases vulnerability to extinction.
Understanding the semantic direction of the sentence is essential to identify the correct tone and meaning of the missing word.
2
Determine the part of speech and definition required for the blank.
The blank requires a transitive verb that describes the impact of habitat fragmentation on an already existing negative condition ('the decline of native species'). The verb must mean to make worse, intensify, or speed up.
This narrows down the potential vocabulary words to those that fit both grammatically and contextually.
3
Select a high-utility academic word that precisely fits this context.
Words like 'exacerbate' (to make worse), 'accelerate' (to speed up), 'aggravate' (to make more serious), or 'compound' (to add to or increase) fit perfectly.
These words maintain the academic tone and logically complete the sentence's meaning.

Key Concept

Identifying a high-utility academic word that fits the grammatical and contextual constraints of a sentence.
Estimated Time:1m 0s
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Topics

Words in Context: High-Utility Vocabulary

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