What was one effect of the Missouri Compromise?

Missouri Compromise, (1820), in U.S. history, measure worked out between the North and the South and passed by the U.S. Congress that allowed for admission of Missouri as the 24th state (1821). It marked the beginning of the prolonged sectional conflict over the extension of slavery that led to the American Civil War.

Explanation:

One effect of the Missouri Compromise was that the states were divided into free and slave states.

Explanation:

One effect of the Missouri Compromise was that the states were divided into free and slave states. For example, Missouri became a slave state.

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.