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Set 14: Rhetorical Synthesis

Explanation

Answer: C

PASSAGE

A student is writing about diamonds. The student wants to explain how diamonds form naturally. Notes: - Diamonds form under extreme pressure and heat. - They are composed of carbon atoms in a crystal structure. - Natural diamonds form 100-200 miles below Earth's surface. - Volcanic eruptions bring diamonds to the surface.

Which choice most effectively uses information from the notes to accomplish the student's goal?

A. Diamonds are among the hardest natural materials on Earth.
B. Diamonds are made entirely of carbon atoms arranged in a crystal structure.
C. Natural diamonds form 100-200 miles below Earth's surface where extreme pressure and heat transform carbon into crystals, which are then carried upward by volcanic eruptions.✓ Correct
D. Diamonds have been valued for jewelry throughout human history.

Detailed Answer Explanation

This question asks you to effectively combine information to achieve a goal. The goal is HOW diamonds form. Deep formation, pressure/heat, and volcanic transport explain the process. The correct synthesis will use relevant details from the notes in a logical, purposeful way. Focus on what the question asks you to accomplish, then choose the answer that best achieves that goal using the provided information. Effective synthesis requires selecting and combining the most relevant information to achieve a specific purpose. Not all provided notes may be equally useful. Focus on what best accomplishes the stated goal while maintaining logical coherence.

Key Evidence:

• "explain how diamonds form naturally"

• "extreme pressure and heat"

• "100-200 miles below"

• "Volcanic eruptions bring diamonds to the surface"

Why others are wrong: A (Not in notes; describes property, not formation.), B (Describes composition but not formation process.), D (Not in notes; discusses value, not formation.).

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