Scientists have estimated the density of Earth
A) by averaging the density of several hundred crust samples.
B) by measuring the wobbly rotation of Earth on its axis.
C) by calculating its interaction with nearby celestial objects.
D) by taking a drilling core and averaging the density of those rocks over the depth.
Answer: B
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Which of the following is NOT an example of the "vibrant internationalism" of the capitalist countries of East Asia?
A) Most Japanese study English for 6 to 10 years. B) Action films from Hong Kong are popular in much of the world. C) Business meetings among Japanese, Chinese, and Korean firms are often conducted in English. D) Relatively large numbers of advanced students from East Asia study in the United States and other English-speaking countries. E) North Koreans maintain an isolationist position.
____ was one of the first researchers to attack issues related to deep-sea sampling
a. Sir John Ross b. Matthew Maury c. Fridtjof Nansen d. John Harrison
The Three Gorges Dam has been constructed on which river in China?
A) Yangtze B) Huang He C) Xi D) Mekong E) Irawaddy
The largest animals in the world are the ________.
A. finback whales B. sperm whales C. humpback whales D. blue whales E. sei whales