Volcanic bombs have a twisted, streamlined shape, which indicates that they ____
A)cooled quickly underwater
B)were formed from ropy, viscous mafic flows
C)were erupted as globs of magma that cooled and solidified during their flight through the air
D)have high amounts of dissolved gases and low amounts of sodium
E)were erupted gently from a shield volcano and cooled as they moved downslope
C
You might also like to view...
What type of atom is represented by the small brown sphere in the center of this silica tetrahedron?
A. silicon B. sulfur C. chlorine D. iron E. aluminum
Which of the following U.S. national parks would be mostly eliminated by a 1-meter rise in sea level?
A) Glacier National Park B) Yellowstone National Park C) Everglades National Park D) Yosemite National Park
HIPPCO is a(n) ____.
A. institute working with genetic solutions to invasive species B. company specializing in solving environmental problems C. government program D. acronym summarizing causes of extinction E. group similar to the Civilian Conservation Corps
Cyanobacteria are characterized by being ________.
A. found only in the plankton B. having a glass-like skeleton C. photosynthetic D. protists E. decomposers