7

Set 9: Text Structure

Explanation

Answer: C

PASSAGE

Plate tectonics explains the movement of Earth's crust. Plates collide to form mountains. They pull apart to create rift valleys. They slide past each other to cause earthquakes.

Which choice best describes the text's organization?

A. A chronological history of Earth.
B. A list of mountains.
C. A central concept followed by three distinct mechanisms.✓ Correct
D. An argument that earthquakes are the worst disaster.

Detailed Answer Explanation

This question tests your understanding of how the text is organized. Concept: Tectonics. Mechanisms: Collide, Pull apart, Slide. Authors structure their writing purposefully to guide readers through their ideas. Identify the organizational pattern (cause-effect, compare-contrast, problem-solution) and how each part contributes to the whole. Authors choose organizational patterns deliberately to enhance their message. Recognizing whether a text uses chronological order, cause-effect, compare-contrast, or problem-solution helps you understand the author's purpose and follow the logic.

Key Evidence:

• "explains the movement"

• "collide"

• "pull apart"

• "slide past"

Why others are wrong: D (No opinion.), B (No specific mountains.), A (No timeline.).

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