16Hit1600
Expression of IdeasVery hardEmphasising the scale of a change with a comparison

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - In 1900 the river's salmon run was estimated at 2 million fish. - By 1980 the run had fallen to about 20,000 fish. - Dams built between 1930 and 1960 blocked most spawning grounds. - Two dams were removed in 2012. The student wants to emphasise how much the salmon run declined between 1900 and 1980.

Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. By 1980 the river's salmon run had fallen to about 20,000 fish, one hundredth of its estimated 2 million in 1900.Correct
  2. B. Dams were built between 1930 and 1960.
  3. C. Two dams were removed in 2012.
  4. D. The salmon run was estimated at 2 million fish in 1900.

Answer: A. By 1980 the river's salmon run had fallen to about 20,000 fish, one hundredth of its estimated 2 million in 1900.

Both figures, with the ratio made explicit.

Why the other answers are wrong

B. Dams were built between 1930 and 1960.
A cause, not the scale.
C. Two dams were removed in 2012.
After the period asked about.
D. The salmon run was estimated at 2 million fish in 1900.
The starting figure only.

More Expression of Ideas questions

Not affiliated with the College Board. SAT is a trademark of the College Board.