Do you think tidal power is an ideal worth pursuing as a solution to our energy problem

because he is using a description to provide evidence to support his argument.

hope this could

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.)

the answer you're looking for is to review what went well and learn how to do it better next time