Final answer:
Japan's population was able to grow due to its favorable climate for rice production and fishing, as well as government policies that supported agriculture and urbanization.
Step-by-step explanation:
Japan's population was able to grow due to several factors. One of the key reasons was Japan's climate, which enabled rice production and fishing. Rice was a staple food in Japan, and its abundant harvests contributed to a reliable food supply. The Japanese government also played a role in promoting population growth by implementing policies that supported agriculture. They abolished feudalism, giving peasants the ownership of their land and providing them with imports of fertilizers and farm equipment. This helped increase food production and allowed peasant farmers to sell their land and move to cities for work, contributing to urbanization and population growth.