Final answer:
The event from the 1930s affecting the Midwestern United States was 'The Dust Bowl,' where people faced severe drought and dust storms leading to massive topsoil erosion and economic hardship. The correct option is a.
Step-by-step explanation:
The event which occurred in the 1930s in the Midwestern region of the United States was known as The Dust Bowl. During this ecological catastrophe, people who lived in this area faced severe drought and dust storms.
Soil became infertile due to the erosion of the topsoil, which was exacerbated by inappropriate farming practices and a lack of adequate soil conservation methods. This led to an exodus of many families who lost their farms. They moved to places like California, seeking work and a better life, but often found hardships and discrimination instead.
The Dust Bowl deeply affected farmers, ranchers, and their families, and they suffered significantly during this period. While the Great Depression was already causing economic hardship nationwide, the Dust Bowl added an environmental challenge to the struggles of the time.
Massive dust storms, some reaching the Atlantic Ocean, blew away vital topsoil, decimating millions of acres of farmland. The drought began in 1931 and lasted for eight years, creating conditions that were both dangerous and devastating for the rural population. The correct option is a.