ART 1001 Lecture : 1001 Lecture 2 1
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Which of these is a pyroclastic material? a basalt lava flow a diorite sill a batholith a volcanic mudflow volcanic ash. Volcanoes with steep slopes that form from the accumulation of viscous lava and pyroclastic flows are: shield volcanoes, stratovolcanoes, hydrothermal volcanoes, none of the above. The type of rock which is not a common volcanic rock is: andesite basalt gabbro rhyolite none of these. The type of volcanic hazard that involves a mudflow made of ash is called a: lahar, tsunami, pyroclastic flow, debris avalanche, lava bomb. What signs do scientists look for when predicting volcanic eruptions? changes in earthquake activity changes in shape increases in gas and steam emission. Chemical weathering involves the breakdown of material due to _____________: mechanical breakdown of rock c. interaction with molten rock, baking in the hot sun d. interaction with water or air. The region has been stable for a long period of time. A flat region distant from an active river.
