When Lincoln mentions problems that cannot be solved individually, what kinds of problems do you think he means? Provide three examples.

The correct answer to this open question is the following.

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Abraham Lincoln considered that the problems that couldn't be solved individually were the issue of slavery in the southern states, the unresolved conflicts that the entrance of Nebraska, Missouri, and Kansas to the Union, and the idea of some states to secede from the Union.

Those are my three examples.

Abraham Lincoln was very aware of those above-mentioned issues. He even expressed in one of his speeches as a Republican candidate that "A house divided against itself, cannot stand."

establish villages

explanation:

it made them more prductive and efficent but with the change of polcies less and les got into the navy