The drug most likely to be found on college campuses is

The answer is alcoholic beverages. Alcoholic beverages are the most common drug found in college campuses. Alcoholic Beverages are considered to be a classification of drugs, which is gateway drugs. Gateway drugs are the classification of drugs that opens the body system to try other drugs and may lead to the abuse of different substances. Alcoholic beverages may lead students to get sober or to be wasted and also be drunk.

stable food supply,social structure, government,religion,culture/art,technology and writing/language;

answer; they burn down the bushes and trees;