Read the passage and answer: Recycling conserves natural resources by reusing materials that would otherwise be discarded. It reduces the need to extract raw materials, saves energy in manufacturing, and decreases the amount of waste sent to landfills. Many communities now offer curbside recycling to make participation easier. What is the main idea?

The passage's sentences all describe how recycling helps — conserving resources, reducing raw-material extraction, saving energy, and cutting landfill waste. The statement that 'recycling conserves resources and provides environmental benefits' captures this overall message. The curbside-recycling sentence and the energy-in-manufacturing point are supporting details, too narrow to be the main idea. Choose the option that the whole passage supports. The central message is that recycling conserves resources and benefits the environment.