Which of the following directly contributed to soil erosion on the great plains in the 1930s?

Drought caused by sparse rainfall, hot summers, and high winds predominantly led to the soil erosion in the Great Plains during the 1930's. Human factors such as over farming, and complete uprooting of plants left nothing to ground the sandy soil. This combined with the high winds caused large amounts of particulate to be picked up and blown away from the area leaving it barren.

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