Some questions on the SAT Reading Comprehension exam will ask you to interpret a chart, graph, or diagram—usually in passages dealing with science and history.

The following practice questions are based on a figure extracted from a scientific passage.

Practice questions

Questions 1 and 2 are based on the following information. Study the figure and answer each question based on information stated or implied in the figure.


  1. According to the figure, the number of volcanic eruptions in 2050 will probably be A. close to 80 B. close to 60 C. close to 40 D. close to 20
  2. What is a drawback of the data collected in the figure? A. Certain islands may not have been included each year. B. Earthquakes may have been counted as eruptions. C. The definition of an eruption has changed. D. Past eruptions may not have been reported.

Answers and explanations

  1. The correct answer is Choice (A). Continue the line upward and to the right. The point that is above 2050 is to the right of where the number of eruptions would show 80.
  2. The correct answer is Choice (D). Although it's possible that the number of eruptions has increased almost each year, it's not likely that the number of eruptions was close to zero before 1800.

About This Article

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Ron Woldoff is the founder of National Test Prep, where he helps students prepare for the SAT, GMAT, and GRE. He is the author of several books, including GRE For Dummies and 1,001 GRE Practice Questions For Dummies.

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