Which process transforms the sun's energy into heat, which is then used to produce electricity?
A. green roofs collectors
B. photovoltaic fuel transformers
C. electric solar converters
D. direct solar conversion
E. solar thermal systems
Answer: E
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The wind-chill index takes into account the wind speed at about ____ above the ground instead of the where official readings are usually taken
a. ?10 m (33 ft) b. ?5 m (16.5 ft) c. ?100 m (330 ft) d. ?1.5 m (5 ft) e. ?15 m (50 ft)
Seafloor hot springs occur mainly in oceanic, abyssal plains
Indicate whether the statement is true or false
The continental ice sheets over North America disappeared ____
a. between about 9,000 and 6,000 years ago b. approximately 14,700 years ago c. about 2.5 million years ago d. between about 5,000 and 4,000 years ago e. about 1300 years ago
Compare and contrast the major types of calderas
What will be an ideal response?