A historian is awarded a grant to study the effects of industrial air pollution on sugarcane farms in Brazil. His research will
focus on which major historical theme? A. Development and transformation of social structures
B. Interactions between humans and the environment
C. Development and interaction of cultures
D. Creation, expansion, and interaction of political systems
I believe the answer is: B.Interactions between humans and the environment
Interaction between humans and environment focus on how humans take advantages of the resources that the environment provided us, and the things that we do to take care of it. This theme is suitable to examine further the Effects on industrial air pollution on farms .
