Free SAT Practice Question

Question 1 of 1
ID: SAT-RW-CS-031
Section: SAT Reading & Writing (RW) – Craft and Structure
Topic: Text Structure and Purpose
Difficulty level: Easy

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Most people assume that a desert is defined by heat, a place of dunes shimmering under a hard sun. Scientists, though, classify deserts by a single measure: how little precipitation they receive. By that standard, some of the coldest places on Earth qualify. Antarctica’s vast interior, where snowfall is so scarce that some valleys receive almost no precipitation at all, is in fact the largest desert on the planet.

Which choice best describes the function of the underlined sentence in the text as a whole?

AIt raises an objection to the definition of deserts offered earlier in the text.

BIt corrects a factual error made in the opening sentence of the text.

CIt provides a striking example that supports the definition of deserts the text endorses.

DIt introduces a new topic that the rest of the text goes on to explore in detail.

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