Question

water conservation is not limited to conserving the amount of water available, but also considers the quality of the water available. the united states has come a long way in this area when compared to other countries. which of the statements below is a water quality conservation method used in the united states? a sewage treatment plants b allowing runoff of irrigation water c throwing out old motor oil instead of recycling it d painting boats in or over the water instead of in dry docks

Explanation:

Sewage treatment plants help in improving water quality by treating wastewater. Throwing out old motor - oil instead of recycling pollutes water. Allowing runoff of irrigation water can cause water pollution and wastage. Painting boats in or over water can release harmful chemicals into water. So, sewage treatment plants are a water - quality conservation method.

Answer:

A. sewage treatment plants