16Hit1600
Expression of IdeasEasy–MediumEmphasising a difference in height

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - Angel Falls, in Venezuela, is about 979 metres high. - Niagara Falls, on the border of the United States and Canada, is about 51 metres high. - Angel Falls is the world's tallest waterfall. - Niagara Falls carries far more water than Angel Falls.

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

  1. A. Angel Falls, at about 979 metres, is nearly twenty times as high as Niagara Falls, at about 51 metres.Correct
  2. B. Angel Falls is in Venezuela and Niagara Falls is on the US–Canada border.
  3. C. Angel Falls is the world's tallest waterfall.
  4. D. Niagara Falls is far higher than Angel Falls.

Answer: A. Angel Falls, at about 979 metres, is nearly twenty times as high as Niagara Falls, at about 51 metres.

Both heights side by side, with the ratio spelled out — choice A.

Why the other answers are wrong

B. Angel Falls is in Venezuela and Niagara Falls is on the US–Canada border.
Locations, not heights.
C. Angel Falls is the world's tallest waterfall.
One waterfall's rank, with no comparison of figures.
D. Niagara Falls is far higher than Angel Falls.
This reverses the notes.

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