Reflectivity, or albedo, is measured ____.
A. as a decimal between 0 and 1
B. as a rank between 0 (low reflectivity) and 100 (high reflectivity)
C. as a rank between 0 (low reflectivity) and 10 (high reflectivity)
D. on a sliding scale from no reflectivity to very high reflectivity
Answer: A
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Technician A says that if a check ball is magnetized, it may not work as designed. Technician B says that a solenoid is magnetic and can attract metal particles that can affect its operation. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Aside from ending slavery, blacks enlisted into the Union Army because they
A. wanted to prove their manhood and strengthen their postwar claim to full American citizenship. B. desperately needed the jobs that military service provided. C. wanted revenge against abusive slave masters. D. hoped to obtain military pensions. E. None of these choices are correct.
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A) macrofauna B) microflora C) mesofauna D) microfauna E) autotrophs
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A) No air is around the motor brushes B) Gasoline is hard to ignite in a closed area C) Electricity is not used to power the pump D) All of the above