The rapid increase in the world's population in the last century and a half was primarily the result of?

There are many different possible answers to this question, each being as plausible as the other. Most scholars, however, argue today that this population explosion is due mainly to one factor.

1.) A general evolution in medicine and medical technologies. Each year fewer and fewer people are dying from illnesses once considered incurable and terminal. This exponential population growth began roughly around the time of the industrial revolution was in full swing.