What are the processes that involve wind sculpting the land surface?
A. aeolian
B. alluvium
C. bedrock
D. climate
E. varnish
A
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A good absorber of radiation is a
A. poor emitter of radiation. B. good reflector. C. good emitter of radiation. D. none of the above
Which is not a factor that leads geologists to expect that convection in the mantle is likely?
A) Viscosity in the lithosphere is high. B) Viscosity beneath the lithosphere is lower because the rock is close to its melting temperature. C) Some of the lithosphere is denser than the asthenosphere. D) The thickness and mass of the mantle are huge.
Instructions: Choose one answer from each pair or group of selections. Precipitation is ABUNDANT | SCARCE in polar regions
Which of the following was not associated with the 1980 eruption of Mount St. Helens?
A) The filling in of the river shipping channel B) The end of life in the local ecosystem for at least 1,000 years C) The change of rivers to which salmon come to spawn D) The deaths of 70 people E) The destruction of many lakes