Blood Alcohol Content is the legal name for BAC but Blood Alcohol Concentration is sometimes used for simpler description. Blood alcohol content is usually expressed as a percentage of ethanol in the blood in units of mass of alcohol per volume of blood or mass of alcohol per mass of blood, depending on the country.
One way that society controls science is that the government can make certain experiments illegal. Hmm, maybe, but the apex answer is: People pass laws to restrict some research.
1. Social scientists help us imagine alternative futures. Social science can open up debate and give us a say in shaping our collective future. The social sciences developed as a field of study during the nineteenth century. Social science helped people understand the consequences and application of the new technologies of the age, such as steam power. The growth of railways and factories not only transformed the economy and the world of work, but also changed forever the way people organised their family lives and leisure.