Describe the American Dust Bowl and the lesson learned
What will be an ideal response?
Homesteaders cultivated the native prairies of the Great Plains of the United States. In this area, prairie grasses had prevented erosion. Farmers removed the grass and planted wheat and raised cattle. This damaged the soil structure. In the early 1930s, a drought exacerbated the ongoing impact of humans on soils and resulted in wind erosion of millions of tons of topsoil. Impacts of soil entrained in the atmosphere were detected as far away as New York, where black snow and rain fell. The lesson was that soil conservation had to be a priority to protect our ability to produce food in this country. The Soil Conservation Service was created.
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The only step of the copper production process that is not significantly bulk-reducing is
A) refining. B) concentration. C) mining. D) smelting. E) ore extraction.
Which of these cities would suffer the most from high ozone concentration in the summertime?
A. Phoenix, AZ B. Seattle, WA C. Minneapolis, MN D. Bangor, ME
What is the highest spot in the conterminous United States? What is its elevation?
Perform a web search to determine the highest point in your state. Then, use the map to determine its elevation in meters.
The presence of marsupials in Australia is partly due to the fact that it is isolated from other
continents. Indicate whether the statement is true or false.