Question

which of the following was a major cause of the dust bowl? low amounts of wind severe flooding poor tillage practices

Explanation:

The Dust Bowl was a period of severe dust storms that greatly damaged the ecology and agriculture of the American and Canadian prairies during the 1930s. Poor tillage practices, such as over - plowing and not leaving enough vegetation to hold the soil in place, combined with drought and high winds, led to the erosion of topsoil and the formation of dust storms. Low amounts of wind would not cause dust storms (as wind is needed to carry the dust), and severe flooding is not a cause of the Dust Bowl (the Dust Bowl was a dry, arid event).

Answer:

poor tillage practices