over 80 gallons
Estimates vary, but each person uses about 80-100 gallons of water per day.
uses of each tools
berundi
The Kingsway Hall Hotel uses upwards of 7 thousand gallons of water each day. The pool area uses water that is maintained by staff and therefor is not refilled.
Each flush of a toilet uses the same amount of water.
Quite a lot
According this show I am watching right now on the Science Channel, "What if: The Oil Runs Out" each American uses 25 barrels of oil each year. That's about a barrel every two weeks. Contrast that to the Chinese for which each Chinese person uses about 2 barrels each year.
. 250
The pronoun "each" is singular, and uses the singular verb, "says."
assembly line
The government uses a census to gather information about the population, such as demographics, socio-economic characteristics, and housing. This data helps determine representation in government, allocate resources, and make decisions about public services and infrastructure.
They use adsense and the ad publisher pays for each time a person uses the link instead of each time it is displayed. You could also get payed per click for having the ads on your site.