Answer:
1) Availability of birth control
2) Industrialization
Explanation:
Two factors that help to examine the population increment in eastern Europe are
1) After the Second World War, communist governments gained control of the economies of their nations. They started pushing for industrialization, resulting in shortages of labor. In fact, during the war, several people were killed, which also reduced the workforce. Most women were forced to join the workforce as a consequence of these crises. Birth control have become more accessible to such women, and people started to have small families.
2) Industrialization has contributed to the transition of further families to a city. And there wasn't a lot of land, which resulted to smaller families being held by people.
