Which environmental problem should be improved by the building of the Three Gorges Dam in China?
A. air pollution
B. water pollution
C. sediment pollution
D. methane gas emissions
Answer: A
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An empty jug of weight W rests on a table. Water of weight w is then poured into it. The support force supplied by the table is
A. W + w. B. W - w. C. W. D. none of the above
In what two major zones or belts has Cenozoic orogenic activity been mainly concentrated? What will be an ideal response?
Which of the following is true of fatty acid degradation and fatty acid synthesis?
A) They both take place in the cytoplasm. B) They both take place in the mitochondria. C) Degradation takes place in the cytoplasm and synthesis takes place in the mitochondria. D) Degradation takes place in the mitochondria and synthesis takes place in the cytoplasm.
The colors in this thermal infrared image indicate
A. the presence of ice in the crater. B. the presence of methane in the crater. C. temperatures of the rocks. D. the presence of water in the crater.