The right answer is great impact when humans use alternative water sources for nondrinking functions.
Water is without a doubt one of the most underrated resources on the planet.
Without water, life would be impossible on our planet - all living beings need water and without it we would die very quickly. Humans can survive for up to a month without food, but without drinking, this survival is limited to a few days.
In the world, the water supply is subject to many pressures. In particular, population growth and economic development put pressure on the availability of freshwater resources. Water quality is, in many ways, closely linked to human health and poor quality water can be synonymous with disease, malnutrition and reduced availability of food. Improving access to freshwater has a positive and direct impact on people and societies, with social, economic and environmental benefits.