Question

how does the structure of the passage support the writer’s purpose? passage the structure helps the author describe how renewable energies work. the structure helps the author present reasons to use hydropower. the structure helps the author present the history of hydropower in the u.s. the structure helps the author present solutions to u.s. energy problems.

Explanation:

To solve this, we analyze each option:

1. "The structure helps the author describe how renewable energies work." — If the passage is about hydropower (a type of renewable energy) but the focus is on promoting its use, this is too broad as it's about describing how renewables work generally, not specific to the writer's purpose related to hydropower's use.
2. "The structure helps the author present reasons to use hydropower." — This aligns with a purpose of advocating for hydropower by providing reasons (e.g., benefits, feasibility), so the passage’s structure (e.g., presenting arguments, evidence) would support this purpose.
3. "The structure helps the author present the history of hydropower in the U.S." — If the purpose is not historical but persuasive about using hydropower, this is incorrect as it focuses on history, not the writer’s purpose of promoting use.
4. "The structure helps the author present solutions to U.S. energy problems." — Hydropower is one solution, but the option is too broad (solutions to all U.S. energy problems) and less specific than presenting reasons to use hydropower (a key renewable energy solution).

Answer:

B. The structure helps the author present reasons to use hydropower.