How would a clastic sedimentary rock form?
A) A sedimentary rock is intensely heated.
B) Particles of preexisting rocks liberate by physical weathering, then cement together.
C) An igneous rock breaks down.
D) A metamorphic rock breaks down.
Answer: B
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The Dakota Sandstone is threatened primarily by:
a. pollution. b. subsidence. c. saltwater intrusion. d. extensive use. e. lack of recharge.
If the pH of a solution is 10, what is the hydroxide ion concentration?
A. 4 M B. ?14 M C. 14 M D. ?1 × 1014 M E. 1 × 10-4 M
In the Atlantic Ocean, where does the youngest oceanic crust occur?
A. Along the coastlines of the continents. B. Adjacent to the mid-ocean ridge. C. There is no set rule: young ocean crust has a nearly random distribution
Describe the general population distribution of East Asia.
What will be an ideal response?