Which of the following rocks cannot be metamorphosed?
A) Shale
B) Sandstone
C) Limestone
D) All of these can be metamorphosed.
D) All of these can be metamorphosed.
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The shortest plane mirror in which you can see your entire image is
A. half your height. B. about 3/4 your height. C. 1/3 your height. D. dependent on your distance from the mirror.
The symmetrical pattern of magnetic polarities about spreading ridges in oceanic crust basalts
indicates that:a. each plate has had an independent set of magnetic reversals. b. basalt retains its magnetic signature for only a few million years. c. new ocean crust is created by volcanism at oceanic ridges and old crust moves laterally away from the ridge. d. the oceanic crust is geologically young. e. magnetic polarity reverses but northern and southern hemispheres do not.
Today invasive species are commonly transported through the oceans on the hulls of ships.
Answer the following statement true (T) or false (F)
Which of the following is TRUE of nitrogen?
A) There is very little nitrogen in the atmosphere. B) The human body obtains the nitrogen it needs from the air. C) The nitrogen that the human body needs is derived from food—not the air. D) Nitrogen is a variable gas.