European Population Growth 1850 to 1910
Which of the following contributed to the growth of the European population from 270 million to 460 million between 1850 and 1910?
A
An abundance of food during the latter half of the nineteenth century that increased life expectancy
B
The development of vaccines for typhoid fever, rabies, and other diseases by the end of the nineteenth century
C
Active campaigns throughout Europe promoting the benefits of large families
D
Continuous migrations of people from North Africa and Asia into Europe