Which method would save the most water? a) turn off the water while brushing your teeth. b) remove plants and other vegetation from your yard. reactivate c) wash cars with a hose rather than a bucket of water. reactivate d) run only full loads in the washing machine and dishwasher.

Option D

Explanation:

It has been observed that when a dishwasher or a washing machine is not used at its full load, then approximately thirty gallons of water per wash goes waste due to non-usage or non- optimized usage. However, in case when these two machines are fully loaded, the 30 gallons of water per wash is also utilized to its full extent. In case if there are not enough utensils or clothes to fully load the machine, it would be advisable to manually clean the dishes and clothes.  

Closing the tap while brushing also saves water. Per brushing nearly 3 gallons of water can be saved.  

Hence, option D would save the maximum water.