Ocean thermal electric conversion (OTEC) uses ________ to produce usable energy.
A. Cold surface water and warm deep seawater
B. Fossil fuel-heated seawater
C. Warm surface water and cold deep seawater
D. Heat from deep-ocean thermal vents
E. Hot water from below the seafloor
Answer: C
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Which statement about urban areas is supported by environmental analysts?
A. Most of the world's urban areas are not environmentally sustainable in the long run. B. Most of the world's urban areas are environmentally sustainable in the long run. C. Since the ecological footprint of a city does not extend beyond its border, cities are models of sustainability. D. The only truly sustainable places occur in large urban areas.
According to Nobel prize-winning economist Gunnar Myrdal, cumulative causation and the spiral of local economic growth in one area tends to cause negative impacts in others called
A) backwash effects. B) agglomeration diseconomies. C) deindustrialization. D) spread effects. E) external economies.
Secondary rainbows occur when ____
A) two internal reflections of light occur in each raindrop B) light refracts through ice crystals C) a single internal reflection of light occurs in each raindrop D) light refracts through a cloud of large raindrops
During a hurricane, the heaviest rainfall occurs in the ____
A) eye B) eyewall C) spiral rain band D) storm's periphery