What type of eruption is shown in this photograph?
A. pyroclastic column
B. lava dome
C. lava flow
D. pyroclastic flow
E. lava fountain
Answer: B
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The Chernobyl disaster in 1986 was what type of environmental disaster?
A) a collapse of a poorly regulated dam B) a massive oil spill into the Volga River which flowed into the Caspian Sea C) a massive coal mine fire which continues to burn to present day D) a meltdown of a nuclear reactor which spewed airborne radioactive waste across thousands of acres of farmland E) a dumping of toxic waste into the Arctic Sea causing a massive loss of fisheries
Where is the world's largest glacier located?
A) Greenland B) Asia C) Antarctica D) Minnesota
What are the primitive organisms thought to have been responsible for the development of Earth’s oxygen-rich
atmosphere in the Precambrian? a. tillites b. cyanobacteria (blue-green algae) c. foraminifera d. diatoms e. prokaryotes
Around the world, rockfalls are expected to become more common because of increased ________
A) earthquakes B) droughts C) temperatures D) tectonic mountain building E) human population