Answer:
The auditory nerve carries sound signals to the brain. The cochlea picks up sound waves and makes nerve signals.
Cross contamination can happen. It is the process in which the microorganisms can be transferred from one substance to another and causing a dangerous effect especially on food thus the answer is Canned goods should be free of dents and any bulging lids to avoid this.
The answer is Marijuana
"High" and "stoned" feeling is what people usually feels after consummating marijuana. Marijuana can also slow down our thinking process and impaired our motor skills which will slow our reaction and response time.
As for Nicotine and Caffeine, study showed that they increase alertness for a tired driver.