What rock or mineral resource is used in the greatest quantity?
A. silicon, for silicon chips
B. aluminum
C. crushed rock, sand and gravel
D. copper
Answer: C
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The first cities appeared in
A) China. B) Egypt. C) the Indus Valley. D) Turkey and Iraq.
As you can see from this map, the Ural Mountains exhibit a north-south orientation through Eurasia. They are about the same age as the Appalachian mountains of eastern North America
How does the theory of plate tectonics explain the existence of this mountain belt in the interior of an expansive continental landmass? Compare and contrast the Ural and Appalachian situations, given their similar age. What will be an ideal response?
Dams have significant advantages, and significant disadvantages as well. Compare and contrast these advantages and disadvantages and explain whether you think dams are an appropriate tool for dealing with fresh water.
What will be an ideal response?
What causes it to be colder in the winter and warmer in the summer in the northern hemisphere?
A) Summer temperatures are warmer because the Earth is closer to the Sun during the summer. B) Summer temperatures are warmer because more sun energy per unit area is received during this time. C) Summer temperatures are warmer because less sun energy per unit area is received during this time. D) Summer temperatures are warmer because the Earth is farther from the Sun during the summer