What is different about the expectations of the last few generations of people on earth?

Plz ? ? 20 points for this question ! hhjc6

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay

Why is the end of the cold war tied to the american domestic economy during this time?