Before becoming a successful writer, jack london was a prospector, searching for gold in alaska.

Novice

Jack London was an American novelist, journalist and social activist. He is best known for his works The Call of the Wild and White Fang. Jack London wrote about the Gold Rush, in which he participated. He also wrote about the South Pacific in general. London was also a social activist, and was interested in topics such as unionization, socialism and workers' rights.

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.

b) the confederacy had to pay all union war expenses.