The scanning probe microscope
A. can scan small things from a large distance away, such as the surface of the Moon.
B. characterizes the surface atoms of a material.
C. uses very large mirrors and lenses to enhance an image.
D. vaporizes a substance, then analyzes and manipulates the components.
Answer: B
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The earth has never recovered from a mass extinction.
Answer the following statement true (T) or false (F)
According to the theory of seafloor spreading, large quantities of molten rock rises up along
A) the mid-ocean ridges. B) trenches that border continental margins. C) atolls surrounding the Pacific volcanic rim. D) subsiding divergent margins.
Who proposed first the Continental Drift Hypothesis?
a. Alfred Wagener b. Harry Hess c. James Hutton d. Charles Darwin
Which is NOT TRUE regarding open-pit mining operations?
A) They are capital-intensive enterprises. B) They do enormous damage to the local environment they are huge enterprises. C) They are huge enterprises. D) They are incredibly deadly for miners. E) They are efficient enterprises.