What is the main reason for the increase in global food production since 1950? 

A)  the blue revolution 
B)  the red revolution 
C)  the yellow revolution 
D)  the green revolution

Global Food Production

The total output of food commodities produced worldwide, encompassing agriculture, aquaculture, and livestock sectors.

Green Revolution

A period during the 20th century characterized by significant increases in agricultural production worldwide, achieved through the introduction of high-yield crop varieties, chemical fertilizers, and pesticides.