A. Charles Darwin
Darwin suggested that a sneer retains elements of baring one's teeth so as to threaten predators.
What type of government did China have in the 1930s?
Officially, the country was ruled by the Republic of China, which had become a military dictatorship by that point. However, the Republic of China was losing control of the country to communist rebels and local warlords. In 1937, the Japanese invaded China, making everything more complicated. In 1949, the communist rebels win and establish China's current government
The correct answer is C. Increased population growth. This enabled the people to have many workers in their factories and it also enabled the England to have a large army that would go and colonize and take the resources back to England. The other things weren't that helpful.
Answer: Oregon Trail
Explanation: Hope it helps :)