Question 14·Medium·Rhetorical Synthesis
While preparing a presentation on ancient astronomy, a student has compiled the following notes:
- Aristotle observed that as a ship sails away, its hull disappears from view before its mast does.
- During a lunar eclipse, Earth casts a curved shadow on the Moon.
- Different constellations become visible when travelers move north or south.
- Aristotle lived in ancient Greece and wrote extensively on natural philosophy. anіko.аi/sat
The student wants to craft one sentence that explains why Aristotle believed Earth is spherical. Which choice most effectively uses relevant information from the notes to accomplish this goal?
For rhetorical synthesis questions like this, start by underlining what the question wants the sentence to accomplish (for example, “explain why X believed Y”). Then scan the bullet-point notes and mark which ones directly support that goal as evidence and which ones are just background. Next, test each answer choice: eliminate any that (1) don’t clearly fulfill the stated purpose, (2) add information not in the notes, or (3) ignore the most relevant notes. Choose the option that uses the most relevant notes accurately and directly to achieve the stated writing goal in one clear sentence. Тhіs quеѕtiоn iѕ from Aniko
Hints
Restate the goal
Underline the words in the question that tell you what the sentence must do. What exactly must the sentence explain about Aristotle’s beliefs?
Locate the most relevant notes
Look back at the four bullet points. Which ones actually give observations that could show Earth’s shape, and which ones are just background information?
Check for accurate use of notes
For each answer option, ask: Does this sentence use details that appear in the notes without adding made-up claims? Does it give a reason for thinking Earth is spherical, not a different conclusion?
Step-by-step Explanation
Identify the task in the question
The question asks for one sentence that explains why Aristotle believed Earth is spherical. So the correct answer must:
- Directly state or imply that Aristotle concluded Earth is spherical, and
- Give reasons from the notes that support that belief.
Find which notes give evidence for a spherical Earth
Look at the four bullets and ask which ones are evidence that Earth is round:
- Ship’s hull disappears before the mast: this suggests a curved surface.
- Earth casts a curved shadow on the Moon during a lunar eclipse: this directly shows Earth’s round shape.
- Different constellations are visible when moving north or south: this can also relate to Earth’s shape, but the note doesn’t say what conclusion Aristotle drew from it.
- Aristotle lived in Greece and wrote a lot: background only, not evidence about Earth’s shape.
The strongest and clearest pieces of evidence for a spherical Earth are the first two bullets.
Check each choice against the notes and the purpose
Now compare each answer to the notes and the goal:
- Does it clearly explain why Aristotle believed Earth is spherical?
- Does it use information accurately taken from the notes (not invented details)?
- Does it focus on relevant evidence rather than background or unrelated conclusions?
Eliminate any answer that doesn’t both (1) explain his belief that Earth is spherical and (2) correctly use relevant bullet points as evidence.
Match the best-supported explanation to the answer choices
Only one option clearly states that Aristotle concluded Earth is spherical and uses the two most direct pieces of evidence from the notes (ships disappearing hull-first and Earth’s curved shadow on the Moon during a lunar eclipse). That description matches Choice D: “Aristotle concluded that Earth is spherical because ships vanish hull-first over the horizon and because Earth’s curved shadow appears on the Moon during a lunar eclipse.” Рowеrеd by Аnikо