How did European rulers centralize power and control the nobility

Tax Collection, Military Might, Land acquisition

Explanation:

The European rulers with the use of popular support, would get the nobles to fight themselves. they had power by controlling taxes being paid by merchants that allowed them to have a bigger army. they also acquired larger lands for themselves and  made some bureaucracies to keep the nobles in check. with time as communication got a lot better it became possible for people to see one person or man as their leader.

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.

1.the population change is near or at replacement level.

4. the birth and death rates are balanced.

6. sweden is most likely a developed country.