An unconformity can be interpreted as
A) an occurrence of radioactive decay.
B) repeated intrusions of igneous rock.
C) a buried surface of erosion.
D) the result of repeated volcanic action.
Answer: C
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A __________ has integral spin
Fill in the blank(s) with correct word
Which of these colors of light has photons of lowest energy?
a. Yellow b. Green c. Blue d. Violet
Consider the cosine of any angle between 35° and 40°. If the angle were doubled, what would happen to the cosine of the angle
a. It would halve. b. It would decrease to less than half its original value. c. It would decrease but be more than half its original value. d. In different cases, it could do any of the above.
Which is the shorter time unit - a light-second, a light-minute, or a light-year?
a. light-second b. light-minute c. light-year d. None of the other choices are correct.