Early agrarian societies learned to harness water with
wells
irrigation
pumps
windmills

Wells, irrigation

Explanation:

Early agrarian societies learned to harness water with wells and irrigation. Both of these methods were extremely effective in order to harness and manage water. Wells gave people access to water that was not easily available in the surface. Irrigation allowed them to better distribute and regulate water supply to crops. Both of these methods were significant in the development of large agrarian societies.

c

explanation:

c

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.