![Great Plains / Agriculture in Canada / Agriculture in the United States / Dust Bowl / Great Depression in the United States / Dust storm / Risks to civilization / humans / and planet Earth / Lesson / Environmental disaster / Spaceflight / Physical geography / Western United States Great Plains / Agriculture in Canada / Agriculture in the United States / Dust Bowl / Great Depression in the United States / Dust storm / Risks to civilization / humans / and planet Earth / Lesson / Environmental disaster / Spaceflight / Physical geography / Western United States](https://www.pdfsearch.io/img/f89e1584c80af57163c4058b970e869e.jpg)
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