Difficult conditions brought on by a severe drought pushed Great Plains farmers to leave their lands and migrate to California.
<u>Explanation:</u>
The farmers from Great Plains also called the refugee farmers or Oakies, who migrated to California from Southern Plains. They had only two reasons to migrate, one is The Great Depression and the other one is the Dust Bowl.
The Dust Bowl is nothing dust storms that resulted in drought and declined dryland farming during the 1930s. This majorly affected the agriculture and ecology of the Canadian and American grasslands and plains.
This severe drought resulted in difficult conditions. That pushed the Oakies to move to California.
Irrigation allowed crops to be grown further away.
The declaration of rights of men is a fundamental document of the French Revolution, defines the individual and collective rights of all the estates of the realm as universal
The correct answer is D) Iraq wanted the unstable Iranian government to fall