Describe the current timing of the eruptions of Old Faithful
What will be an ideal response?
Answer: Old Faithful is not as faithful as it used to be. Earthquakes have disrupted the interval between eruptions. An hour and a half is now average but there is great variation. Still, it is more "faithful" than most all other geysers in the world.
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The majority of the energy consumed in the world today comes from nonrenewable sources
Indicate whether this statement is true or false.
What determines the characteristics of ocean waves?
a. The wavelength and wave period b. The wave height and wave frequency c. The wavelength and water depth d. The wave period and wave frequency
What is the main cause of uplift during a continental collision?
A. an almost doubling of the thickness of continental crust B. down flexing of one continent in front of thrust belts C. thinning of the lithosphere D. addition of magmas from the subduction zone
Which of the following is commonly associated with tributaries?
A. an increase in the discharge in the main river B. rapids when the tributary joins the main river C. delivery of sediment to the main river D. All of these choices are correct.