Set 9: Rhetorical Synthesis
Explanation
PASSAGE
A student is writing about dark matter. The student wants to explain the evidence for its existence despite being undetectable. Notes: - Dark matter doesn't emit or absorb light. - Galaxies rotate faster than visible matter alone would allow. - Gravitational lensing reveals more mass than visible. - Dark matter is estimated to comprise 27% of the universe.
Which choice most effectively uses information from the notes to accomplish the student's goal?
Detailed Answer Explanation
This question asks you to effectively combine information to achieve a goal. The goal is evidence DESPITE being undetectable. Acknowledging invisibility while presenting rotation/lensing evidence addresses this. 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:
• "evidence for its existence despite being undetectable"
• "doesn't emit or absorb light"
• "Galaxies rotate faster"
• "Gravitational lensing reveals more mass"
Why others are wrong: D (Not in notes; mentions search, not specific evidence.), A (Calls it a mystery but doesn't explain evidence.), B (States proportion of universe but not evidence for existence.).
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