Answer Key

Choose the best explanation for the following phrases from the text...

You answered 0 of 5 questions correctly in this part of the test.

  1. "a plausible explanation" is one that:  [is apparently or likely true]
  2. "the plot is thickening" means:  [things are becoming more interesting than they originally were]
  3. "died of exposure" means, scientists thought Otzi: [died from being outside without protection from the weather]
  4. "an airtight case" means:  [one that is solid and proven beyond any doubt]
  5. "an educated guess" is a guess that is: [based on knowledge or experience, but not 100% sure]
Are the following questions about the reading true or false?

You answered 0 of 5 questions correctly in this part of the test.

1.   The theory that Otzi was murdered by a group is based on the number of arrow wounds he received.That is incorrect. Correct is: Look in the text to find out.

2.   Scientists are highly confident that their new explanation of the facts is correct.That is incorrect. Correct is: Look in the text to find out.

3.   DNA tests show that Otzi was almost certainly killed instantly in the attack.That is incorrect. Correct is: Look in the text to find out.

4.   Evidence shows that Otzi may have killed people before as well.That is correct.

5.   Scientists now think that Otzi was murdered by his friends.That is incorrect. Correct is: Look in the text to find out.