An earthquake, a submarine landslide, or an eruption of an undersea volcano is capable of producing a
A) tsunami.
B) slow-moving giant swell.
C) tidal wave.
D) wave in the open ocean of great height.
E) breaker.
A
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Since 1980, the U.S. population has
a. shifted to the north and east b. shifted to the north and west c. shifted to the south and east d. shifted to the south and west e. shifted to the north as people seek cooler areas because of global warming
Noticing large amounts of algal growth in her small farm pond, a farmer adds about 20 grass carp to feed on the abundant algae and plants. After several years, the carp grow large, exceeding 20 pounds each in size
Late one summer, the farmer notices that the carp and most of the other fish are dead. The water also smells very bad. Which one of the following is the most likely explanation for the death of these fish? A) The algae overgrew the pond and produced toxic levels of ozone. B) The large carp grew so large that they could not get enough oxygen. C) Bacteria feeding on the large volume of carp feces depleted the oxygen. D) Carbon dioxide released by the carp and algae eventually suffocated the fish in the pond.
Basaltic magmas crystallize at higher temperatures than granitic magmas.
Answer the following statement true (T) or false (F)
Mafic magma generated in the ________ rises to the base of the crust.
A. spreading ridges B. asthenosphere C. outer core D. mantle plumes E. continental crust