What was the impact of british imperialism on economics, politics, society, and the environment?

British imperialism had the effect of destroying the economies of underdeveloped countries by breaking up the age-old patterns of their agrarian economy, and by forcing shifts to the production of cash crops. This also had a polluting effect on the environment through factory emissions. Through divide and conquer, it led to ethnic based politics

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries