16Hit1600
Expression of IdeasMediumExplaining a cause

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - Venice's bell towers lean because the city is built on soft mud. - Builders drove wooden piles into the mud to spread the load. - Where piles were too few or too short, towers settled unevenly. - The campanile of Santo Stefano leans about 2 metres from vertical.

The student wants to explain why some Venetian bell towers lean. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. Venice's towers stand on wooden piles driven into soft mud, and where the piles were too few or too short, the towers settled unevenly and began to lean.Correct
  2. B. The campanile of Santo Stefano leans about 2 metres.
  3. C. Venice has many bell towers.
  4. D. Wooden piles were driven into the mud.

Answer: A. Venice's towers stand on wooden piles driven into soft mud, and where the piles were too few or too short, the towers settled unevenly and began to lean.

Mud, piles, insufficient piles, uneven settling: the cause laid out.

Why the other answers are wrong

B. The campanile of Santo Stefano leans about 2 metres.
An example of leaning without the reason.
C. Venice has many bell towers.
Not from the notes and explains nothing.
D. Wooden piles were driven into the mud.
The method alone, without why it sometimes failed.

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