Free SAT® Practice Question: Details

Also Great Practice for ACT® Reading

Photo by Ian Schneider on Unsplash

Today’s free SAT® practice question is a mock Details Question. It follows the digital SAT® format¹ but is also great preparation for ACT® Reading.

For effective time management on test day, you should aim to answer this question correctly in a maximum of 50 seconds.

Consistent daily practice and study is the best way to improve your SAT® score. To gain access to all answer explanations and strategy guides, become a premium subscriber. You’ll also be able to post comments and questions.

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Free SAT® Practice Question

Marine biologists studying ocean ecosystems have documented numerous species of coral reef fish in the Great Barrier Reef system off Australia's eastern coast, including several from the Holocene epoch that were discovered in sedimentary deposits near Heron Island. However, to investigate the earliest vertebrate fish that evolved in Earth's oceans, scientists must examine different locations, such as the Devonian rock formations at Miguasha National Park in Canada. Recognized for its exceptional fossil preservation by the International Paleontological Association, this 87-square-kilometer preserve contains over 9,000 well-preserved fossils that collectively illustrate a pivotal transition in vertebrate evolution.

What does the text indicate about the rock formations at Miguasha National Park?

A. They contain a greater variety of fish species but fewer total fossils than the sedimentary deposits near Heron Island.

B. They have yielded evidence suggesting that coral reef ecosystems first developed during the Devonian period.

C. They are widely regarded by marine biologists as the definitive source for understanding all fish evolution.

D. They preserve specimens from an earlier geological time period than those found in the Great Barrier Reef deposits.

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Answer Explanations and Strategy Guide