From 1850 to 1880, what was the most used energy resource in the United States?
A) coal
B) natural gas
C) nuclear power
D) petroleum (oil)
E) wood
E
Environmental & Atmospheric Sciences
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A tool bag is motionless in outer space. A second tool bag with 3 times as much mass moves at 12 m/s and makes an inelastic collision. The combined bags move at
A. 4 m/s. B. 8 m/s. C. 3 m/s. D. none of the above
Environmental & Atmospheric Sciences
Which land designation offers the best opportunity to protect biodiversity in the U.S.?
A. wilderness B. National Forest C. private D. farmland
Environmental & Atmospheric Sciences
The southern supercontinent is called
A. Laurasia B. Glossopteris C. Pangaea D. Gondwanaland
Environmental & Atmospheric Sciences
Which of the following describes where St. Elmo's fire is most likely to occur?
A. over a thick, moist swamp B. over a dry, grassy field C. at the top of a tall, dead tree D. near the base of a tree
Environmental & Atmospheric Sciences