Piped water supply systems have been in existence for well
over 2,000 years.
Only about _____ of Earth's freshwater is available for human
Please select the single best match for the following terms
below discussing water demand.
This water is supplied to houses, schools, hospitals, hotels, restau
culinary, sanitary, and other purposes. Use varies with the econo
consumer, the range being 20 to 100 gal/capita/d. It should be po
figures include water used for watering gardens and lawns and fo
This water is supplied to stores, offices, and factories. Generally
water demanded directly related to the number of persons emplo
floor space or area of each establishment, and to the number of u
or produce. In the United States use averages 150 Bgal/d.