Why did the Dust Bowl of the 1930s increase migration in the U.S.?

Question

Responses

It was a sudden-onset event that led to voluntary migration.

It was a slow-onset change that led to forced migration.

It was a sudden-onset event that led to forced migration.

It was a slow-onset change that led to voluntary migration.

Answer 1

The Dust Bowl of the 1930s was a slow-onset change that led to forced migration.