Question

1. how does the author’s use of language in paragraph 12 contribute to the tone of the article?

it provides an enthusiastic tone to support the idea that geology is important to human life.
it presents an informal tone to help the reader better understand how fall lines develop.
it provides a hopeful tone that people in the future will be more aware of the need to protect nature.
it presents a casual tone to make the complex subject of geology more interesting and relatable.

Explanation:

To solve this, we analyze each option:

• Option 1: If the author uses language to show enthusiasm for geology's importance to human life, this aligns with how language can create an enthusiastic tone to support a key idea.
• Option 2: The question is about the tone's contribution to the article's tone, not just reader understanding of fall lines (and "informal" may not fit if the focus is on enthusiasm for geology's importance).
• Option 3: The option is about a hopeful tone for future nature protection, which is not indicated as the focus of paragraph 12's language use.
• Option 4: A "casual" tone to make geology relatable is less likely than an enthusiastic tone to support geology's importance to human life.

So the first option is the most logical as it connects the language use to an enthusiastic tone supporting geology's importance to human life.

Answer:

A. It provides an enthusiastic tone to support the idea that geology is important to human life.