Alluvial fans are generally composed of uniform clay and silt
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following is the reason for the lower levels of water in the Lake Mead reservoir since 2000?
A) Over harvesting in Nevada B) Deforestation C) Drought D) Too much government regulation E) Illegal diversion to Mexico
The feature that distinguishes the two subclasses of bony fish is their:a
gill structure. b. skeletal structure. c. fin structure. d. teeth structure. e. scale structure.
The site selected for the disposal of high level radioactive waste is the ocean.
Answer the following statement true (T) or false (F)
What happens to a river as it flows through a delta and encounters the sea? 
A. The maximum sediment grain size carried by the river increases. B. The total sediment load carried by the river decreases. C. The discharge and water velocity increase. D. All of these choices are correct.