The combined use of heroin and alcohol impairs driving beyond that usually related to the BAC of alcohol
O may affect driving ability if both substances are taken in abundance
does not affect driving ability
Olowers the BAC of the driver causing some impairment of driving ability

What is difference between an epidemic and a pandemic? a) an epidemic is a disease; a pandemic is a treatment.b) an epidemic is restricted to a local region; a pandemic is global.c) an epidemic has low mortality; a pandemic has higher mortality.d) an epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.