Planktonic foraminifera provide evidence for glaciation based on ____
a. shell size
b. shell striations
c. carbon isotope ratios
d. coiling direction
e. number of offspring
d
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Describe the surface wind direction and the winds aloft direction for the northern hemisphere on a non-rotating Earth. Assume a smooth, uniform Earth
What will be an ideal response?
When fluid lava erupts onto the surface, it typically produces
A) lava flows. B) lava domes. C) ash columns. D) pyroclastic flows.
Andalusite, kyanite, and sillimanite are described as polymorphs. What does this mean?
A) They have the same atomic structure but different chemical compositions. B) They have the same chemical composition but different atomic structures. C) They all morphed at the same time. D) They are exact opposites of one another.
Primary (P) waves have all of the following characteristics except
A) arrives first at seismic stations. B) body wave. C) causes alternating squeezing and stretching of the material as the wave passes. D) can't pass through gases and liquids.