List examples of how water is used in each of the following water-use
classifi cations. What will be an ideal response?
a. Public water supply.
Water used for both domestic (household) and commercial purposes (private businesses,
hospitals, military, schools) comes from the public supply.
b. Mining.
Water is used to extract minerals like copper and silver; and fossil fuels, including coal,
oil, and natural gas. Water is also used in stone quarries and ore mills, and to control
dust in and around mines.
c. Agriculture.
Water is used to irrigate crops, raise livestock, and mix chemicals to apply to crops.
d. Industrial.
Water is used either in the processing of most manufactured products, or to cool the
machinery that produces them.
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__________ are found beneath fair-weather cumulus (cumulus humilis) clouds, whereas
__________ are found between the clouds. a. downdrafts; updrafts b. updrafts; downdrafts c. downdrafts; only horizontal motions d. updrafts; only horizontal motions
Which pollutant is formed during the incomplete combustion of carbon-containing fuels?
A) sulfur dioxide (SO2 ) B) carbon monoxide (CO) C) carbon dioxide (CO2 ) D) volatile organic compounds (VOCs)
How many cleavage directions does this mineral specimen display?
A) 1 B) 2 C) 3 D) 4
A gas is expanded from an initial volume of 20.5 L at 0.92 atm at 23 °C to a final volume of 34.6 L. During the expansion the gas cools to 12 °C. What is the final pressure?
A) 0.28 atm B) 0.52 atm C) 0.57 atm D) 1.9 atm