Earth's velocity of rotation is at its maximum at the ____
a. poles
b. Arctic/Antarctic circles
c. tropics
d. equator
e. mid-latitude zone
d
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Overall, this type of seismic wave is the most destructive
A) S wave B) tsunami C) surface wave D) P wave
Enhanced oil recovery methods are necessary because
A. the presence of natural gas makes it impossible to pump liquid petroleum. B. drilling directly into an oil field is often not possible. C. only about one third of the liquid petroleum within a field can be recovered by initial pumping. D. increasingly, drilling directly into an oil field is being banned by law.
What are the principal gaseous components of Earth's atmosphere? Where do scientists believe these gases originated?
What will be an ideal response?
Which of the following is the smallest grain size category for clastic particles?
a. sand b. gravel c. silt d. regolith e. clay