Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: One way that students can help conserve natural resources at school is by
recycling aluminum cans.
turning off lights when leaving a room, using both sides of paper for notes, and refilling water bottles instead of buying new ones.