Why is the climate of the Rocky Mountains relatively warm?
A) Warm air travels north from the Gulf of Mexico.
B) Warm air travels east from the Pacific Ocean.
C) The coldest air from Canada flows only to either side
D) The low pressure above the mountains draws warm air from all sides.
B
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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.
These pillars are remnants of layers, most of which have been stripped away by wind erosion. If this occurred in less than five years you might reasonably conclude that
A. this area recently has become a productive place to produce agriculture. B. this area was originally a lake. C. there must have been drought, overgrazing, or some short-term climatic change. D. the pillars are remnants of volcanic necks.
The limited development of soil horizons in the soil type pictured below occurs because
A. precipitation is limited. B. the subsurface is covered by permafrost. C. volcanic ash has penetrated very deeply beneath the surface in this soil type. D. leaf litter is so abundant that it tends to leach downward across all of the layers.
Polar-wander curves prove that the magnetic poles have meandered over the earth's surface with time.
Answer the following statement true (T) or false (F)