What is the single greatest domestic and commercial use of water?
A. Watering lawns and gardens
B. Rainwater harvesting
C. Toilet flushing
D. Electric power production
Answer: A
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The fact that the trees in central Alaska look like the trees in western Siberia, despite being separated by thousands of kilometers, illustrates the theory of
A) convergent evolution. B) multiple origins. C) global dispersal. D) plate tectonics.
On what date did Hurricane Georges make landfall on the U.S. mainland?
How many days did it take Hurricane Georges to travel across the Atlantic Ocean before landfall? What will be an ideal response?
What rock type is the most common setting for caves formed by dissolution of a rock?
A. slate B. dark porous lava flows C. gray limestone D. well-sorted sandstone E. gray granite
The source of radon gas in the home is typically
A) decay of airborne uranium B) uranium-bearing rocks and soil underlying the house C) waste from uranium mining operations in the region D) radioactive components of electronics equipment