16Hit1600
Expression of IdeasHardEmphasising change over two centuries

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - In 1800, about 3% of the world's people lived in cities. - In 1900, the figure was about 15%. - In 2007, the share passed 50% for the first time. - Today, more than 55% of people live in cities.

The student wants to emphasise how much the share of people living in cities has changed since 1800. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. Only about 3% of the world's people lived in cities in 1800; today more than 55% do.Correct
  2. B. The share of people living in cities passed 50% in 2007.
  3. C. In 1900, about 15% of the world's people lived in cities.
  4. D. The share of people living in cities has changed little since 1800.

Answer: A. Only about 3% of the world's people lived in cities in 1800; today more than 55% do.

The earliest figure against the latest — choice A shows the size of the change.

Why the other answers are wrong

B. The share of people living in cities passed 50% in 2007.
A single milestone, with no comparison to 1800.
C. In 1900, about 15% of the world's people lived in cities.
A middle figure, with no comparison to the present.
D. The share of people living in cities has changed little since 1800.
This contradicts the notes.

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