list four methods of conserving water
Kindly refer to the following link
https://www.meritnation.com/ask-answer/question/write-any-four-way-to-conserve-water/every-drop-counts/5876102
https://www.meritnation.com/ask-answer/question/write-any-four-way-to-conserve-water/every-drop-counts/5876102