Describe the 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, and thus, the Soil Conservation Service was created.
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An oxygen sag occurs most often
A. After the water recovers from the pollution source B. Immediately downstream from a pollution source C. In estuaries closest to a pollution source D. Immediately upstream from a pollution source E. At any of these places
What is a major contributor to coastal erosion jeopardizing human property?
a. The diverting and damming of rivers b. The dredging of bays c. The building of breakwaters d. The creation of jetties
A major holiday in some pagan religions is
A) Summer solstice. B) Winter solstice. C) Vernal Equinox. D) Autumnal Equinox. E) Solar Eclipse.
The Haber-Bosch process allows farmers to ________
A) apply synthetic phosphorus-rich fertilizers to their cropland B) circumvent regulations meant to protect waterways from nutrient pollution C) fertilize their cropland without having to worry about nutrients getting into waterways D) extract nitrogen from animal waste products for use as fertilizer E) apply synthetic nitrogen-rich fertilizers to their cropland