Two technicians are discussing ase certification. technician a says that there are 60-plus exams each designed to discern the automotive service technician's knowledge of job-related skills. technician b says that exam questions are based on actual situations, scenarios, and problems that would be seen every day in an auto repair shop. who is right?

How many atoms are there in 5.70 mol of mg

Adilute aqueous potassium nitrate solution is

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.