What was overall impact of the Columbian Exchange on the continents of North America, South America, Europe, Africa, and Asia? T
he exchange caused widespread famine and food shortages. The exchange cut off interactions between cultures. The exchange permanently changed the natural and human environments. The exchange ensured that native populations retained control of their lands.
Option C. Columbus underwent deep voyages and discovered the present day America. He also discovered the marine route which associated the old Eastern world to the new Western world.
After the establishment of Sea route there was exchange of goods with other countries started. But the negative impact was that people of Eurasia were not healthy with high levels of immunity.
The interchange of food supplies also initiated the arrival of dangerous diseases too and major part of the European, native American and Asian population died causing shortage of human labor, this gradually lead to the slavery of Africans.
The National Labor Relations Board (NLRB) is an independent federal agency that governs relationships between businesses, unions and workers. Investigate and provide solutions to illicit practices committed by companies and unions.
The concept of social infrastructure is generally contrasted by physical or economic infrastructure. While the physical infrastructure directly supports economic growth, social infrastructure aims to help build the community by providing the necessary social services [28] and improving residents' quality of life [29] .