The tetrahedron building unit of a clay crystal contains _____ atoms.

a. 1 aluminum and 6 oxygen
b. 1 aluminum and 4 oxygen
c. 1 silicon and 4 oxygen
d. 1 silicon and 6 oxygen


Ans: c. 1 silicon and 4 oxygen

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Some seeds require a moist, cold rest period (dormant stage) at temperatures below 37°F (3°C) for 8 weeks or longer. Examples of seeds that require a rest period are the _____

A) apple, peach, and pear tree B) carnation C) Judas tree D) sweet clover

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Nucor Corp. manufactures generator coolers for nuclear and gas turbine power plants. The com­pany completed a plant expansion through financ­ing that had a debt/equity mix of 40%–60%. If $15 million came from mortgages and bond sales, what was the total amount of the financing?

What will be an ideal response?

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Which of the following may keep you from getting a job offer after an interview?

A) Having poor grades or low grade-point average B) Making a poor first impression, and dressing sloppy at the interview C) Having a poor attendance record at your previous job D) All the above E) Only A and C

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Which metal is the best conductor of electricity?

A) Copper B) Silver C) Gold D) Brass

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