A caldera collapse occurs ________.
A. in the middle of the eruption
B. before the eruption starts
C. at the onset of Vulcanian activity
D. millions of years after the volcano's final dying eruption
E. after the magma chamber is mostly empty
Answer: E
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For the following balanced equation, which has the highest coefficient? 4 H2 + 2 C ? 2 CH4
A) H2 B) C C) CH4 D) H4 E) none of the above
What is a core belief of poststructuralists in geography?
A) Countries must develop by passing through stages. B) Technological progress is inevitable. C) Poverty can be ended with governmental action. D) There is no single objective view of the world. E) Decision makers are always rational in their behavior.
Aboriginal boys about to enter adulthood take a ritual journey called __________ that follows the path of his creator-ancestors
Fill in the blank(s) with correct word
What is the importance of the photic zone in aquatic habitats?
a. Oxygen levels are very low in the photic zone, often resulting in mass mortalities. b. Only plants can thrive in the photic zone. c. Habitats that have a large photic zone are more likely to have a high level of nutrients d. Predation is lowest in the photic zone e. The photic zone is where most primary production occurs