16Hit1600
Expression of IdeasEasy–MediumEmphasising a difference in speed

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - A peregrine falcon can dive at over 300 kilometres per hour. - A garden snail moves at about 0.05 kilometres per hour. - The falcon is a bird of prey. - The snail is a mollusc.

The student wants to emphasise the difference in speed between the two animals. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. A peregrine falcon dives at over 300 kilometres per hour, while a garden snail manages about 0.05 — some six thousand times slower.Correct
  2. B. A peregrine falcon can dive at over 300 kilometres per hour.
  3. C. The falcon is a bird of prey and the snail is a mollusc.
  4. D. The garden snail is faster than a diving peregrine falcon.

Answer: A. A peregrine falcon dives at over 300 kilometres per hour, while a garden snail manages about 0.05 — some six thousand times slower.

Both speeds, side by side, with the gap spelled out — choice A.

Why the other answers are wrong

B. A peregrine falcon can dive at over 300 kilometres per hour.
One speed, nothing to compare.
C. The falcon is a bird of prey and the snail is a mollusc.
This contrasts what they are, not how fast they move.
D. The garden snail is faster than a diving peregrine falcon.
This reverses the notes.

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