The president signing a trade agreement with china is an example of

I believe the answer is: Making a treaty

A treaty refers to a formal agreement that being made by two countries or more. Treaty could be made for both political, military, or economic reason. Treaties regarding trade agreement is made so both parties involved could obtain some sort of financial benefit with the help of the other party/

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

the south did not want the federal laws to overrule the state laws.