The passage emphasizes the widespread reliance on smartphones for various tasks, making this the main idea.
The passage emphasizes the environmental benefits of recycling, making this the overarching main idea.
While the passage mentions the benefits of public transportation, the main focus is presenting it as an alternative to driving.
The passage discusses all four seasons and their unique features, making this the best choice for the main idea.
The passage highlights the importance of eating a variety of foods to ensure proper nutrition, making this the central idea.
The passage discusses how volunteering benefits both the volunteer and the community, making this the main idea.