Why did factory workers dread unemployment?

Because they are not making money

Millions of people moved to the nation's rural areas hoping to improve their economic positions. Workers dreaded layoffs because they had no unemployment insurance. ... Trade Unions wanted to better the bargaining position of workers

a.) Song Emperor Taizu decided to appoint a superintendent of maritime trade in the southern port city of Guangzhou, and afterward other superintendents in the ports of Hangzhou and Mingzhou as well.

b.) They would usually bring into China spices and aromatics, rhinoceros horn, ivory, coral, embers, pearls, fine steel, sea-turtle leather, tortoise shell, gemstones, foreign cloth, ebony wood and ect.

Explanation: read the passage very well to find clues.