Question

water faucets can use up to 3 gallons per minute while running. what is something you can do to conserve water?
let the water run down the drain while you wait for it to warm up
always turn off the water when brushing your teeth
there is nothing you can do to conserve water

Explanation:

Turning off water while brushing teeth reduces unnecessary water - usage, conserving water. Letting water run while waiting for it to warm up wastes water, and it's incorrect to say nothing can be done to conserve water.

Answer:

B. always turn off the water when brushing your teeth