Explanation: The tone of a text or sentence is the author's or speaker's attitude towards the audience, the subject or even the characters of the text. There are many different kinds of tones, like: positive, negative, objective, sad, angry, etc. In the given excerpts from "Silent Spring" and "Save the Redwoods" respectively, we can see examples of a passionate tone to talk about controversial and important subjects.
Well, the words negative, positive, and world are all common words that are used in our everyday lives. So, I would choose C. Materializes Hope I helped!
