What is hypothesized to drive the Wilson cycle of plate fragmentation and reassembly?
What will be an ideal response?
Continents assemble into a supercontinent, being drawn toward cool regions of the asthenosphere. The supercontinent acts as an insulator, so the mantle heats up below the continent. The continent rises in response, and tension at the surface breaks its apart forming smaller continents. These smaller continents eventually disperse and then reassemble, being drawn again to cool asthenosphere.
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Another term for soils, based on the Greek term thereof, is
A) pedosphere. B) edaphosphere. C) geosphere. D) biosphere. E) asthenosphere.
What kind of waves are tides?
A) Standing waves B) Free waves C) Forced waves D) Transitional waves
The precipitation in Mediterranean climates
A) decreases with latitude. B) comes primarily from local convection over heated surfaces. C) is confined to winter in large part because of the nearby presence of subtropical high pressure systems in summer. D) is affected very little by mid-latitude cyclones.
All latitude circles are great circles.
Answer the following statement true (T) or false (F)