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PLANET EARTH: Department of Earth & Planetary Sciences, fall ‘12
PLANET EARTH: Department of Earth & Planetary Sciences, fall ‘12
RutgersUniversity Geological sciences (100)
Dr. Christopher J. Lepre clepre@rci.rutgers.edu
Web assignment #9: Earth's water: Rivers and streams
Allanswers must be placed on the scan-tron sheet. Answers place on this paper or answers submitted via email will not be accepted.http://ga.water.usgs.gov/edu/earthrivers.html

1) Most of the water you see flowing in rivers comes from precipitation runoff.
A. True B. False

2) Some of theprecipitation that falls in a watershed may soak into the ground to recharge groundwater aquifers. A. True B. False

3) A river flows from a higher altitude to alower altitude as a consequence of
A. gravity B. heat C. air pressure

4) Rain falling on the land also seeps into the Earth to form
A. groundwater B. surface water C. atmospheric water

5) Unsaturated soil is a layer above the water table.
A. True B. False

6) Is the estimated annualdischarge of all African rivers larger or smaller than North America’s largest river? A. Larger B. Smaller

7) If you add the lengths of the world’s threelargest rivers about how many miles are there in total? A. 12,000 B. 24,000 C. 36,000

8) Which is longer the Mississippi or Missouri river?
A.Mississippi B. Missouri

9) About how many miles longer is the longest African river as compared to the longest river in the USA? A. 1000 B. 1600 C. 2600