Which branch of the U. S. goverment has the responsibility of interpreting the Constitution? A Executive Branch B State Governments C Legislative Branch D Judicial Branch ​

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation:

(d) take jobs from american workers.