Which of the following regions will primarily erupt silica-rich lavas?
A) Oceanic mantle plumes
B) Oceanic rift zones
C) Continental margins
D) Impact craters
Answer: C
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It is estimated that 10,000 individual organisms are necessary for an endangered species to continue biological evolution.
Answer the following statement true (T) or false (F)
Cloud seeding using silver iodide only works in?
a. ?cold clouds composed entirely of ice crystals. b. ?warm clouds composed entirely of water droplets. c. ?cold clouds with a low ratio of ice crystals to water droplets. d. ?clouds with more ice crystals than supercooled droplets. e. ?clouds that can produce precipitation.
Which of the following atmospheric layers is the hottest?
A. mesosphere B. troposphere C. thermosphere D. stratosphere
Which wavelengths are most inefficiently transmitted through the atmosphere?
A) Long B) Visible blue C) Short D) Solar radiation E) Radiation with 0.5-micrometer wavelengths