Question

which of these is a way to conserve freshwater?
a. install low - flush toilets in homes.
b. avoid drip irrigation systems on farms.
c. add water features to private gardens.
d. build thermal power plants.

Explanation:

Low - flush toilets use less water per flush compared to traditional toilets, thus conserving freshwater. Drip irrigation systems are actually water - conserving in agriculture (so avoiding them is not good for conservation). Adding water features (like fountains in gardens) uses more water. Thermal power plants often consume large amounts of water for cooling etc.

Answer:

A. Install low - flush toilets in homes.