1. in what way did china's isolated geography contribute to its development as a country?
a. isolation allowed china to develop on its own, without too much interference from foreign invasion.
b. isolation caused the chinese people to lag behind the world in technological and cultural advancements.
c. isolation kept the chinese people from creating trade routes for the exchange of goods and ideas.
d. isolation created barriers between the chinese people and their rulers, causing turmoil in the social structures

The correct answer is A) Isolation allowed China to develop on its own, without too much interference from foreign invasion.

China's isolated geography contributed to its development as a country in that  Isolation allowed China to develop on its own, without too much interference from foreign invasion.

China is located in a territory that has many geographical barriers. For instance, the Yellow Sea, the Himalayas, Gobi Desert, Mount Everest, Taklamakan Desert, The Pacific Ocean, and the Jungles of Burma. China had no many visitors during this isolationist period. This allowed China to establish its own rhythm of development without external influences.

because he created electricity

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.