What did the Fugitive Slave Act of 1793 do? protected the rights of runaway slaves
enforced the Constitution
gave rights to slaves
eliminated safe havens for runaway slaves

Eliminated Safe Havens for runaway slaves

Explanation:

This made it legal to arrest runaway slaves anywhere in the United States so nowhere was safe for them

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.

the first two years of american revolution was not very encouraging for the patriots since the british were far superior in sea power, arms and troops.