Question

A problem that free African Americans faced in the North was​

Answer 1

Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

Answer 2

Answer:

During the American Revolution, some 5,000 Black soldiers and sailors fought on the American side. After the Revolution, some slaves—particularly former soldiers—were freed, and the Northern states abolished slavery.