Final answer:
Alcohol intoxication is determined by the Blood Alcohol Concentration (BAC), with legal intoxication typically defined as a BAC of 0.08%. Higher BAC levels can result in more severe intoxication effects.
Step-by-step explanation:
Alcohol intoxication is determined by the Blood Alcohol Concentration (BAC). Legal intoxication is typically defined as a BAC of 0.08%. At this level, a person may experience impaired judgment, decreased reaction time, and reduced behavioral control. Higher BAC levels can result in more severe intoxication effects, such as unconsciousness and even death. Each person metabolizes alcohol at a rate of about 0.015% BAC per hour. It is important to note that the effects of alcohol can vary depending on individual factors such as age, sex, and pre-existing health conditions.