Answer:
Poor land and unpredictable weather made farming on the Great Plains hard and fruitless.
Step-by-step explanation:
Many African Americans disappointed when they got to the North because there are"Poor land and unpredictable weather made farming on the Great Plains hard and fruitless."
This is because many African Americans felt they would still be able to practice their agricultural occupation in the North.
However, due to poor land which is bad for agriculture, and the different weather which is quite colder than what they were normally used to, many felt disappointed about the North.