technician a says a refrigerant identifier is only needed when the technician is unsure of the refrigerant used in an ac system. technician b says that some refrigerant identifiers can measure the amount of moisture in the refrigerant system to aid in diagnosis. who is  correct?  
a.  technician a   
b.  technician b   
c.  both technicians a and b   
d.  neither technicians a nor b

Carbon dioxide can be produced form what type of power generation?

Jason is preparing to write a persuasive argument paper on the treatment of female characters in william shakespeare's works. which source should he refer to while researching? a. a historian's blog devoted to shakespeare's characters b. a literary scholar's essays on shakespeare's characters c. works by authors who have female characters in similar roles d. a wikipedia entry describing shakespeare's characters e. a sociology student's writings on shakespeare's characters

Which option describes the most cost-effective way for a skateboard company to purchase plywood?