What is the leading source of renewable energy worldwide?
A. hydropower
B. geothermal energy
C. solar-cells
D. biomass
E. biodiesel
Answer: A
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Explain how export-oriented method of economic growth can demonstrate the importance of global interactions
What will be an ideal response?
The O horizon is ________
A) usually more sand than silt or clay B) composed of equal amounts of bedrock and organic material C) primarily loam D) primarily composed of organic materials E) composed primarily of bedrock
Which of the following is the best example of a positive feedback effect?
a. ?Melting ice exposes the dark surface of the ocean, which reflects less of the sun’s energy than ice. This heats the water and in turn, melts more ice. b. ?Melting ice exposes the dark surface of the ocean, which reflects more of the sun’s energy than ice. This heats the water and in turn, melts more ice. c. ?Melting ice allows ocean levels to rise and reduce the surface area of the remaining ice, slowing its melting rate. d. ?Aerosols block the sun’s radiation, slowing the melting of ice. e. ?Aerosols cause air pollution, which increases local drought conditions.
The Himalayan Mountains are thought to have formed ________.
A. by ocean-ocean convergence B. at a spreading center C. by continent-ocean convergence D. by continent-continent convergence E. at a transform fault