cause: Europeans gained new materials like gold, silver, and jewels. The Europeans enslaved the Native Americans and took most of them back to Europe. The explorers also gained new foods like corn and pineapple. Columbus also discovered tobacco seeds and brought the seeds back to Europe.
Effect: Colonialism's impacts include environmental degradation, the spread of disease, economic instability, ethnic rivalries, and human rights violations
great Britain(Answer A) the European nation which came to control India in the 18oos. Great Britain dominated power in India in 1800s. British were interested by East India company which exploited cotton. This made the company to loss its monopoly in east Africa.