The energy behind the 1902 pyroclastic flow that destroyed St. Pierre came from ________.
A. gravity
B. the blast of the volcano
C. gas escaping from pieces of airborne pyroclastic material, creating a "popcorn" effect
D. All of these choices are correct.
Answer: D
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Which of the following climate types normally has the largest annual range in temperature?
A. humid subtropical climate B. subpolar climate C. polar ice cap climate D. tropical climate
Suppose you are asked to convert a paper map to a digital data set. What methods can you use for the task? Briefly describe how each method works.
What will be an ideal response?
Brazil leads the world in exports of sugar, beef, poultry, coffee, orange juice, ethanol, and tobacco
Indicate whether the statement is true or false