I have tried hard to get good photographs of my friends. What word is an adverb

"hard"

Explanation:

First you should know what and adverb is

Adverb is an adjective that describe verbs

In this case it is hard since you are describing you tried hard

Hard

Explanation:

An adverb describes the verb. In this sentence, "tried" would be the verb since you were trying to get good pictures.

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.)