Which of the following are characteristics of actively erupting volcanoes?
A) Glowing orange lava flowing downhill.
B) Fragments of molten rock blasting into the air.
C) Billowing clouds of ash rising into the air.
D) All of these are correct.
D) All of these are correct.
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Generally speaking, the intertidal area is: a. rich in life, with considerable species diversity
b. not particularly rich in life. c. not particularly rich in life, but rich in food. d. virtually devoid of life because of the great difficulty organisms have in surviving there.
Hydroelectric power plants are most commonly located near
A. artificial reservoirs. B. nuclear-power plants. C. coal-powered plants. D. estuaries.
The most controversial national family planning program is closely associated with
A) China. B) the United States. C) Zimbabwe. D) Singapore. E) India.
The decline in the number of hurricane-related deaths since the 1920s is due to the decreasing frequency of hurricanes
a. True b. False