Why did many early farmers settle in river valleys? Mountains and hills were impossible to farm.
Animals stayed away from the river valleys.
The valleys had water access and fertile soil.
The humans believed water killed evil spirits.

The valleys had water access and fertile soil.

Explanation:

River valleys are the most fertile region, and the first human settlement were all done to do agriculture. The fertile soil in these regions was best suited for agriculture. Hence people first settled near river valleys.

The valleys had water access and fertile soil.

Explanation:

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.

explanation:

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