Logical Reasoning

PT114 · S2 · Q25 In our solar system only one of

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In our solar system only one of the nine planets—Earth—qualifies as fit to sustain life.

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.

25.

The argument is questionable because it presumes which one of the following without providing justification?

  1. If a planet is Earthlike,

    Trap

    7% picked this

  2. Correct

    Our solar system is similar

    Why this is right

    Answer B is correct.

    Skill tested: Flaw · how this choice captures the argument's function is the move to repeat next time.

    79% picked this

  3. The conditions necessary for life

    Trap

    2% picked this

  4. Life similar to Earth’s could

    Trap

    5% picked this

  5. Most other planetary systems in

    Trap

    7% picked this

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