Multiple Choice
The energy behind the 1902 pyroclastic flow that destroyed St.Pierre came from _________________.
A) the blast of the volcano
B) gravity
C) gas escaping from pieces of airborne pyroclastic material,creating a "popcorn" effect
D) All of the choices are correct.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The Pacific Northwest of the United States
Q2: In Icelandic-type eruptions,low viscosity,low-volatile content lava erupts
Q4: In 1973 the town of Vestmannaeyjar on
Q5: Ways of generating pyroclastic flows include _.<br>A)dome
Q6: The two most active Cascade Range volcanoes
Q7: At Lake Nyos in 1986,a gas cloud
Q8: In the United States,there was great concern
Q9: Active volcanoes today in Oregon and Washington,including
Q10: During the 1990's,hundreds of trees were killed
Q11: Pyroclastic flows cannot travel down all sides