The air-conditioning process works through a fluid, called a ________ that continuously changes state from liquid to gas and back to liquid.
A) Insulator
B) Element
C) Conductor
D) Refrigerant
D) Refrigerant
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When did scientists begin to realize the important link between atmospheric gas concentrations and our climate on Earth?
What will be an ideal response?
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Select a narrowleaf evergreen specimen and describe its period of interest
What will be an ideal response?
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If the note on a concrete apron in front of a garage door indicates a pitch of 1/2 inch per foot and the apron is 4 feet wide, the total pitch is ____ inch(es).
A. 1/2 B. 1 C. 2 D. 4
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It has been suggested that synchronous motors are more expensive to install than squirrel cage motors if the rating exceeds 1 hp.
Answer the following statement true (T) or false (F)
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