Which of the following statements about the Colorado River is not true?

a. 14 major dams and reservoirs have been built along the river
b. the system has experienced severe drought since 1999
c. it provides resources to people in 7 states
d. part of the upper basin originates in the state of Wyoming
e. the river still delivers the same amount of water to the sea in the Gulf of California


E

Environmental & Atmospheric Sciences

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Typically when a glacier recedes, the deposited material leaves behind

A) material of a wide range of sizes, until streams moving around the area begin to sort the material by size. B) material of a wide range of sizes only after streams moving around the area begin to mix together the particles of different sizes. C) primarily clay-sized material because material bigger than clay cannot be picked up by ice easily. D) primarily sand-sized materials and larger because the ice tends to crush the finer materials into a powder.

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The cleanup of hazardous waste accumulated in orphan sites is complicated because

A) most of the waste is buried below the water table. B) there is no responsible party to clean up the waste. C) the chemicals have evaporated before they could be removed. D) there are no longer places available to dispose of hazardous wastes.

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Moving toward the Southern border of the United States, English becomes less common and Spanish is more often spoken. What type of region does this gradual change of language reflect?

A) formal
B) functional
C) vernacular
D) bilingual

Environmental & Atmospheric Sciences

What is the source of water for hydrothermal metamorphism?

A) Groundwater percolating from the surface B) Fluids coming off magma plutons C) Black smokers sucking seawater into the subsurface D) Groundwater from the surface and fluids from magma plutons

Environmental & Atmospheric Sciences