Which of these statements is effectively worded as a theme? american indians had their land taken away. connection to nature can influence cultures. the mistreatment of american indians. the promise of america.

Connection to nature can influence cultures - This statement is effectively worded as a theme. 

Under this theme, writer can then list down how the connection to nature can influence cultures. He/she can write all the pros and cons a culture experiences as a result of having a connection with nature. He/she can also present projections on future results of these influences.