1. How much of Southern Nevada's water comes from the Colorado River?
72 percent 66 percent 85 percent 22 percent
2. Who sold the Mormon Fort and its water rights so that construction of the railroad could begin?
Octavius Decatur Gass John C. Fremont William Clark Helen J. Stewart
3. How much of the human body is water?
4. The hydrologic cycle says that water is constantly in motion. Of every 100,000 gallons of water, how much is actually in motion?
100,000 gallons 100 gallons 10 gallons 5 gallons
5. The earliest artifacts found at the Las Vegas Springs date back how far?
150 years 500 years 1,000 years 5,000 years
