Answer:
More work in the world must be done on how to reuse water because water which was once considered an exhaustible natural resource has now been labelled as 'a scarce resource .One way is water harvesting where rainwater is collected to be reused again. In Japan, a basin is attached over the flush so that the water to wash hands then goes into the flush and is re-used. Factories and industries should clean the water used before releasing it into water sources so that the water can be reused. Reuse excess drinking water. When vegetables are washed the water can be reused to water the plants instead of being thrown away. Dirty aquarium water can be used as fertilizer for the plants.
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