What is one thing you can look for to determine quickly if a print source may be to you?

Try checking the date, it usually helps. When looking at an out-of-date article, you may find some of the information in it to be incorrect. It is best if you use an up-to-date article or print source for work or essay writing.

what play?

explanation:

there is no play

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)