Question

The primary reason that the human population has grown rapidly over the past 100 years is that there has been
A.

an increase in food supplies and better access to clean water.
B.

a decrease in cancer rates due to scientific research.
C.

more access to renewable resources.
D.

more access to light and electricity.

Answer 1

The primary reason that the human population has grown rapidly over the past 100 years is that there has been **A. an increase in food supplies and better access to clean water.**

This increase in food production and improved access to clean water have contributed significantly to lower mortality rates and higher birth rates, which in turn have facilitated population growth.