Sand grains can be distinguished from silt grain by ________.
A. the gritty feel between the teeth
B. composition of the grains
C. only by a microscope
D. the gritty feel between the fingers.
E. seeing the individual sand grains
Answer: D
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What offsets the mid-Atlantic ridge's movement at fairly regular intervals?
A) Hydrothermal vents B) Cooling lithosphere C) Transform faults D) Seamounts
The ultimate source of groundwater is the oceans
Indicate whether the statement is true or false
Which country of Southeast Asia has been troubled by tensions from its orthodox Muslim region known as Aceh?
A) Thailand B) the Philippines C) Indonesia D) Singapore E) Vietnam
How can we tell that the Himalaya has been uplifted?
A. Deep rocks are exposed at the surface and yield young isotopic ages. B. The top of Mount Everest contains a limestone with marine fossils. C. Uplift can be measured with a global positioning system (GPS). D. All of these choices are correct.