8

Set 15: Transitions

Explanation

Answer: B

PASSAGE

The construction of the Panama Canal required removing over 200 million cubic yards of earth and rock. Workers had to battle tropical diseases, particularly malaria and yellow fever. _______ the project was plagued by engineering challenges, including unpredictable landslides that repeatedly blocked the excavation.

Which choice completes the text with the most logical transition?

A. Therefore,
B. Moreover,✓ Correct
C. Instead,
D. In other words,

Detailed Answer Explanation

This question asks you to choose the transition that best connects two ideas. The passage lists multiple challenges: disease AND engineering problems. 'Moreover' adds another challenge to the existing list. Transitions signal the relationship between sentences or paragraphs. Determine the logical relationship (addition, contrast, cause-effect, example) and select the transition that accurately expresses it. The right transition makes the relationship between ideas crystal clear. Consider what logical connection exists: Is the second idea adding to the first? Contrasting it? Showing a result? The transition should accurately reflect this relationship.

Key Evidence:

• "tropical diseases"

• "engineering challenges"

Why others are wrong: D (Restatement - landslides are a different challenge, not a restatement of disease.), A (Cause/effect - engineering challenges weren't caused by diseases.), C (Alternative - both problems existed simultaneously, not as alternatives.).

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