Which of the following kinds of coal has the highest carbon content?
A. Bituminous
B. Brown coal
C. Sub-bituminous
D. Lignite
Answer: B
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The inside of a car or greenhouse would not heat up as much in the presence of sunshine if
A) air was circulated within the car or within the greenhouse. B) infrared radiation passed through glass as easily as sunlight. C) infrared radiation could not pass through glass as easily as sunlight. D) sunlight could pass through glass more easily than through air.
What are some of the factors that helped South Korea develop such a large and profitable shipbuilding industry?
What will be an ideal response?
Which of the following is true of eutrophication in marine ecosystems?
A) Eutrophication aids the ecosystems by providing needed limiting nutrients, such as phosphorus. B) Eutrophication can kill fish. C) Eutrophication can aid corals by killing parasites. D) Eutrophication is rare and occurs only in bad weather.
Which of the following is not true of the inputs to Earth's coastal environments?
A) Climate strongly influences coastal geomorphic processes. B) Atmospheric winds generate ocean currents and waves. C) Compared to other inputs, human activities are insignificant coastal inputs. D) Solar energy inputs drive prevailing winds, weather systems, and climates. E) Coastal geomorphology are important in determining rates of erosion and deposition.