California's entrance as a free state would cause enslaved people there to be freed automatically.
Answer:
By using the reasoning skills we develop from studying history. Understanding history can help you think through the causes, effects, and about what computers may be able to do in the future, based on past trends.
Explanation:
The increased migration and increased population that the United States saw during (any) era are examples of "<span>c. demographic and environmental changes," since these have to do mainly with population distribution. </span>