Which of the choices below is a feature of the oceanic ridge system?
a. a transform fault
b. the destruction of lithosphere
c. a mountain range
d. a rift valley
e. a deep-sea trench
d. a rift valley
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Slate and shale are types of sedimentary rock
Indicate whether the statement is true or false
An elevator does 1000 J of work in elevating it one floor in 20 s. The power used by the elevator is
A. 20 W B. 100 W C. 50 W D. 1000 W
Which of the following is not a difference between sea ice and ice shelves?
A) composition B) where they form C) where they exist D) how long they exist
Most analyses of world oil reserves and current demands indicate that short of any significant new oil field discoveries, maximum global production of oil
A) peaked in the 1970s. B) peaked in 1998. C) is peaking in 2015. D) will peak in the next 10 to 15 years.