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Medium Reading and Writing · Expression of Ideas · Rhetorical Synthesis · MCQ

While researching a topic, a student has taken the following notes:

  • Planetary scientists classify asteroids based on their composition.
  • C-type asteroids are composed primarily of carbon.
  • They account for roughly 75 percent of known asteroids.
  • S-type asteroids are primarily made up of silicate minerals.
  • They account for roughly 17 percent of known asteroids.

The student wants to emphasize a difference between C-type and S-type asteroids. Which choice most effectively uses relevant information from the notes to accomplish this goal? 

  1. A

    Planetary scientists classify asteroids into types, two of which are the C-type and the S-type.

  2. B

    Planetary scientists consider an asteroid’s composition (such as whether the asteroid is composed mainly of silicate minerals or carbon) when classifying it.

  3. C

    Roughly 17 percent of known asteroids are classified as S-type asteroids; another percentage is classified as C-type asteroids. 

  4. D

    C-type asteroids are mainly composed of carbon, whereas S-type asteroids are primarily made up of silicate minerals.

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id cb_question_bank:9bd07567-f642-4371-ba6a-e3dc78d08874 · question d7c5388f · JSON