Final answer:
Singapore relies on recycled water to meet a significant portion of its water needs, with more than 40% coming from recycled sources like NEWater.
Step-by-step explanation:
Singapore relies on recycled water to meet a significant portion of its water needs. At present, more than 40% of Singapore's water comes from recycled sources, specifically treated wastewater known as NEWater. This percentage is expected to increase further in the future as Singapore continues to invest in wastewater treatment and reuse technologies.
This advanced reclaimed water process treats used water with dual-membrane (microfiltration and reverse osmosis) and ultraviolet technologies to produce high-grade reclaimed water that is clean and safe to drink.