What four kinds of habit-forming drug use at the start of the 20th century caused social reactions leading to the passage of federal drug laws? hart, carl. drugs, society, and human behavior (page 73). mcgraw-hill higher education. kindle edition?

The answer is "alcohol, morphine, cocaine, and opium".

A habit-forming drug is the one which is equipped for prompting physiological or mental dependency which is a term that alludes to the condition of requiring a specific medication keeping in mind the end goal to work normally. An addictive medication is a medication which is both rewarding and reinforcing.

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.