It helped power the trains and steam boats.
After the ottomans blocked the Europeans trade routes to the Indian subcontinent and the rest of Asia Europe had to find an ocean route around Africa which put them in contact with many indigenous populations which the Europeans would colonize and enslave in order to exploit the routes they had to take to get to Asia <span />
china was affected by traded by getting stuff created in china out
Yes it was necessary. it gave alot of freedom to woman to and womans rights.
