Answer:
The civil war.
Explanation:
This is the war that was caused in part by the conflict over slavery.
In order to build a hypothesis, Joan should take an educated guess at what the effect of adding salt to the water will be on the water's boiling point. For example, the hypothesis may be,
"The boiling point will increase".
This hypothesis is one that can be verified or rejected via experimentation. The next step for Joan would be to set up an experiment to test this hypothesis.
Answer:
i believe it's b. but i could be wrong :p
The Great Migration occurred due to racism in the south.
