Reading Comprehension

PT103 · S4 · P3 · Q21 Dolphin Die-off

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Between June 1987 and May 1988, the bodies of at least 740 bottlenose dolphins out of a total coastal population of 3,000 to 5,000 washed ashore on the Atlantic coast of the United States.

Goal

Let's get rid of the four answers we can match up with the passage.

21.

Which one of the following factors is explicitly cited as contributing to the dolphins' deaths in both theories discussed in the passage?

  1. the dolphins' diet

    Trap

    1% picked this

  2. the presence of P. brevis

    Trap

    1% picked this

  3. the wide variety of toxins

    Trap

    2% picked this

  4. Correct

    the presence of synthetic pollutants

    Why this is right

    Answer D is correct.

    Skill tested: Locate Detail · how this choice captures the passage's function is the move to repeat next time.

    86% picked this

  5. the bacterial infection caused by

    Trap

    10% picked this

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