Small appliances such as household refrigerators and freezers now primarily use:

A) HCFC-22. B) HFC-134a. C) CFC-12. D) HFC-410A.


B

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?During in-mold decorating, ____ methods can be used to hold foils in the proper location. 

A. ?chemical B. ?elastomeric C. ?electrostatic D. ?heated

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Most soldering jobs in agricultural mechanics can be done with solder composed of

a. 30 percent tin, 70 percent iron c. 50 percent tin, 50 percent lead b. 40 percent copper, 60 percent steel d. 30 percent tin, 70 percent steel

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____________________ are special molecules that control important biological reactions

Fill in the blank(s) with the appropriate word(s).

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Worldwide, excesses and/or deficiencies of water reduce crop yields more than any other factor

Indicate whether the statement is true or false

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