Why did unions develop in the late 19th century

Describe hiw the meanings of the constitutional clauses that grant powers to congress have been defined

What was the difference between bombing military targets in the united kingdom, and bombing the city of london? a. bombing a city kills lots of innocent civilians, bombing a military target doesn't b. bombing military targets didn't force the u.k. to surrender, but bombing london did c. military targets were bombed by japan, while london was bombed by the nazis d. london was bombed before the u.s. entered the war; military targets were bombed afterward

In what way did expansion and global trade during the 15th to 18th centuries affect the economies of european countries?