Oxygen levels are lowest in what section in the diagram?
A. A
B. B
C. C
D. D
E. E
Answer: E
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Which of the following is a valid statement about how rocks respond to stress?
A) If the stress is very high, the rock will be unchanged. B) Stress can cause a rock to be displaced, but not rotated. C) If a rock has strained, then it has changed its size or shape. D) A rock can be displaced or strained but not both at the same time.
Freezing rain
A) does not involve a temperature inversion. B) is also known as sleet. C) occurs as translucent spheres of ice. D) requires supercooled water drops. E) is most frequent in the southern United States.
Terrorism differs from assassinations and other acts of political violence because
A) attacks are never well coordinated. B) attacks are aimed at military targets or political leaders. C) attacks are aimed at ordinary people. D) attacks use only personal and improvised weapons. E) attacks are typically made without regard for political goals.
Speleothems are made when water evaporates into the cavern air, leaving behind deposits of calcium carbonate
a. True b. False Indicate whether the statement is true or false