Explain how the development of new technologies changed the world from 1900 to present.
Explain how environmental factors affected human populations over time.
Explain the causes and effects of environmental changes in the period from 1900 to present.
Explain the continuities and changes in the global economy from 1900 to present.
Explain how social categories, roles, and practices have been maintained and challenged over time.
Explain how and why globalization changed culture over time.
Explain the various responses to increasing globalization from 1900 to present.
Explain how and why globalization changed international interactions among states.