To transfer heat to the surrounding air, a convector primarily depends on _____.
a. a circulating fan
b. a centrifugal blower
c. gravity
d. radiation
c. gravity
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? Identify and state the historical significance of referendum.
What will be an ideal response?
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A switch that is used on 240-volt residential branch circuits to control a load from one location is called a __________ switch.
a. single-pole b. double-pole c. occupancy d. combination
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Two angles are complementary if they add up to how many degrees?
What will be an ideal response?
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______ are mentioned in records at least 4,000 years old.
Fill in the blank(s) with the appropriate word(s).
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