Squall lines form most often ahead of a(n) ____
a. stationary front
b. cold front
c. warm front
d. occluded front
e. orographic front
b
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In your opinion, what factors produced the long delay between the time of Wegener’s lectures and book and the time of acceptance of his theory?
What will be an ideal response?
Lateritic soils
A. are kept soft and workable by the action of sun and rain. B. are rich in nutrients. C. are common soils in tropical rain forests. D. All of the choices are correct.
The African region has a wealth of inland waterways, but frequent changes in elevation and escarpments make them difficult for transportation. However, they are especially attractive for
a. hydroelectric power. b. large urban areas. c. oil and gas exploration. d. casino and gaming facilities. e. heavy manufacturing.
Metamorphic rocks are classified primarily on
A. mineralogy-the presence or absence of quartz B. chemical composition C. environment of deposition D. texture-the presence or absence of foliation