What affected opening the pacific ports to foreign traders have on China

it expanded the trade.

Explanation:

so it helped

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization