the continental crust is what? A. composed of basalt B. made of rock 200 million years old C. formed from quickly cooled lava D. up to 70km thick

Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals

Great britain and japan are both island nations with limited resources. as a result, each nation developed according to its distinctive geographic location and limitations. for this assignment, compare and contrast the effects of geography on the industrialization and imperialistic growth of these two nations. use evidence from at least five documents in your essay. support your response with relevant facts, examples, and details.

[ou.01jthe greatest speed with which any physical object moves is 300,000 km/soundsec. which of the following has a speed of 300,000 km/sec? a. light in water b. light in vacuum c. sound in air. d. sound in water