16Hit1600
Information and IdeasMediumFinding supporting a claim about a river's course

Information and Ideas practice question

A geographer claims that the river changed its course during the eighteenth century.

Which finding, if true, would most directly support the geographer's claim?

  1. A. Maps from 1720 show the river flowing east of the town, while maps from 1790 show it flowing west of the town.Correct
  2. B. The river floods the town's lower streets every spring.
  3. C. The town was founded in 1650.
  4. D. The river appears wider today than in old paintings of the town.

Answer: A. Maps from 1720 show the river flowing east of the town, while maps from 1790 show it flowing west of the town.

Two dated maps showing the river on different sides of the town, both within the eighteenth century, directly document a change of course in that period.

Why the other answers are wrong

B. The river floods the town's lower streets every spring.
Spring floods say nothing about the course changing in the 1700s.
C. The town was founded in 1650.
The town's founding date is irrelevant to the river's course.
D. The river appears wider today than in old paintings of the town.
Width isn't course, and undated paintings don't fix a century.

More Information and Ideas questions

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