Lava with a higher content of has higher viscosity. If a large explosion causes the magma chamber below a volcano to empty, the volcano can collapse and form a/an .
Shield volcanoes can form when less lava flows quickly away from a vent.

Which of the following people would a member of congress most likely contact for information on pending revenue legislation? a) a bureaucrat in a foreign government's revenue service. b) the host of a popular talk show c) the staff at one of the congressional support agencies d) athletes on a professional sports team form a major city