As an individual you can use solar panels, donate old clothes, use eco friendly materials, recycle, even trying to grow your own food.
American people that supported imperialism said they had a duty to "civilize" and christianize other people, thought they needed to spread western culture.
Tbh I think it’s the last one and I’m not 100% sure
First off, the Great Depression made Lange realize that she wasn't content simply taking photos just for pay. In other words, the onset of the Depression allowed her to embark on a journey of finding fufillment in taking photos and on taking these photos as a form of art, like a recreational hobby, rather than as just a job. This journey she set out on, taking pictures of everyone, mostly the poor, made her realize that taking photographs of people who are severly struggling made the most powerful photos. In this way, her job of taking photographs not only enhanced her skills but caused her to become more concerned for the welfare of these poor folks she was photographing. This photography journey, caused entriely by the Great Depression, opened up a whole new world for Lange. A world where she wanted to help those who were suffering and were not as blessed as her. The Great Depression turned Lange's career of photography into a career of bringing attention to those who were the neediest, bolstering the determination of not only the destitute but also others out there willing to help the needy just as she was.
