Which of the following volcanos are stratovolcanoes?
a. Mauna Loa on Hawaii
b. Mt. St. Helens
c. Fujiyama
d. Both a and c
e. Both b and c
Ans: e. Both b and c
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Volcanic domes grow from lava being injected into the interior of mounds of cooled lava and from the breaking out and moving down the flanks of
A) viscous lava flows. B) runny lava flows. C) basaltic lava flows.
You are given the following information concerning the country of Laos.Percent of population under 15 years of age = 43%Percent of population over 65 years of age = 4%The Laotian dependency ratio is:
A. 0.8868 B. 1.128 C. 1.326 D. 0.04167
Which of the following is true of Venezuela and Colombia as compared with the Guianas?
A presence of 'pond scum of algae' represents
A) decaying water body due to higher salinity. B) excessive aquatic plant production due to farm fertilizer run off. C) effluents from the factories killing plant life. D) evaporation. E) reduced water supply.