Social Studies

which of the following was a cause of the ecological disaster known as the dust dawn A. A massive earthquake that loosened the topsoil B. A flood in California C.The plowing under the native grasses that kept topsoil in place D. Excessive rainfalls that year

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Hi, Bawkins The answer is C.  The many dust storms that occurred during the dust bowl era was caused by poor farming techniques, that removed essential grasses and other plants, causing the topsoil to become loose.  Also, natural drought played a role in it too. -Hope this helps!

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