Which naturally emitted gas, accumulating in indoor spaces, has been linked with lung cancer in humans?

A) radon
B) ozone
C) carbon monoxide
D) asbestos
E) mercury


Answer: A

Environmental & Atmospheric Sciences

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Features associated with ancient continental rift zones include faults, dikes, and sills

a. True b. False

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One study estimated that the United States has enough wind power potential to produce ____ times its current electricity needs.

A. 2-3 B. 5-10 C. 16-22 D. 36-42 E. 46-52

Environmental & Atmospheric Sciences

The Smithsonian decides to apply this method to other species of birds. Which of the following do they compare?

What will be an ideal response?

Environmental & Atmospheric Sciences

What is the retail margin for clothing made in China and sold in the U.S. or Europe?

A) 400-500% B) 200-300% C) 95-150% D) 75% E) none of the above

Environmental & Atmospheric Sciences