Question

Poor farming techniques and drought caused the formation of the ___ in the Great Plains of the United States in the 1930s. This phenomenon made the land vulnerable to ___ erosion and also led to the displacement of many people living in the Great Plains. Today farmers plant trees and shrubs known as ___ to control erosion in vulnerable areas.

First drop down menu: dust bowl, sand bowl, particle bowl

Second drop down menu: wind, wave, glacial

Third drop down menu: wave breaks, wind breaks, glacial brakes

Answer 1

• Based on the context, answers are:
• Dust bowl is a period of catastrophic dusty storms in the territory of Canada and the USA caused by serious ecological and agricultural damage of land in the 1930s.

• Wind erosion is characterized by the wind blowing out the smallest parts. Wind erosion contributes to the destruction of vegetation in areas with insufficient humidity, strong winds, continuous grazing.
• Windbreaks are a creation of windproof forest strips on top of slopes, the bottom of ravines, on edges of fields of sevorevolutions.

Answer 2

The correct options are: "dust bowl - wind - wind breaks"

The dust bowl effect was caused by persistent drought conditions, favored by years of soil management practices that left it susceptible to the action of wind forces. The soil, stripped of moisture, was lifted by the wind in great clouds of dust and sand so thick they hid the sun.

The following year, 1937, President Roosevelt ordered the planting of "belts" of trees to protect the soil from erosion caused by the wind. The trees were planted along the fences that separated the properties or between the fields forming "windbreaks". The plan would last several years and in 1942 about 220 million trees had already been planted.