The first nuclear weapons to be used against another nation were dropped in?

By the United States during World War II.

cuba is a multi-ethnic nation

according to the map, most industrialization in europe occurred in the northwest.

the production of coal and lignite deposits was profitable throughout western europe.

the building of railroads transport goods throughout europe.

according to the map, the population trend indicates that more people are moving into cities.

northwest

coal and lignite depostis

railroads

cities