solar-collection panels high-speed computers wireless Internet connections biodegradable carpeting
I gave my students this multiple choice question: Which upgrade to a school will most likely reduce the school's consumption of nonrenewable resources?

Only one answer is correct among these 4 choices:
- solar-collection panels
- high-speed computers
- wireless Internet connections
- biodegradable carpeting

Could you tell me which one is correct?

solar-collection panels