Diamond can cut through quartz. What does this suggest?

A) Quartz is very weak.
B) Diamond is very strong.
C) Quartz is somewhat weak and diamond is somewhat strong.
D) Both are very weak but diamond is only a bit strong.


Answer: B

Environmental & Atmospheric Sciences

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The hydrogen bonds of water molecules account for which of the following?

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The stream whose geometry has been laid down on a rock structure and is not controlled by the structure is called:

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A 10-N block and a 1-N block lie on a horizontal frictionless table. To push them with equal acceleration, we would have to push with

A) equal forces on each block. B) 10 times as much force on the heavier block. C) 10 squared or 100 times as much force on the heavier block. D) one-tenth as much force on the heavier block. E) none of the above

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