A house that absorbs and stores heat from the sun directly within a well-insulated, airtight structure is taking advantage of a(n) ____system.
A. active solar heating
B. passive wind
C. active biofuel
D. passive solar heating
E. passive geothermal
Answer: D
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Which of the following is NOT a part of the Earth's electric field?
A) positive charge in the upper atmosphere B) negative charge on the surface C) recharged by thunderstorm lightning D) negative charge in the upper atmosphere
Carbon dioxide is a naturally occurring component of the atmosphere
a. True b. False
Which of the following groups contains all three major topographic provinces oceanographers use to define the seafloor?
A) Continental margins, mid-ocean ridges, and deep-ocean basins B) Mid-ocean ridges, continental shelves, and divergent boundaries C) Submarine trenches, mid-ocean ridges, and turbidity currents D) Deep-ocean basins, active margins, and passive margins
Why are there virtually no sediments at ocean ridges, even when they are close to land?
A) The sediments get deflected from the topographic high of the ridge. B) The sediments get buried by volcanic rocks, so are not visible. C) The crust is too young; there hasn't been enough time for sediments to accumulate. D) No one knows, it is one of the mysteries of geology.