Describe the four causes of imperialism

I don't think there are "the" 4 causes, as in 4 causes widely agreed to be the most important: there were many more causes. But here are 4 causes that I find important:

-political importance and prestige: countries wanted to be better than other countries...
-economical: countries sought wealth, for example natural resouces
-religious: countries sought favors with the pope by converting the "pagans"
- curiousity in the Age of Exploration: the will to discover our planet

Social and economicthe concept of international social responsibility is the expectation that mncs concern themselves about social and economic effects of their decisions regarding activities in other countries.

*blinks* youforgotyourname**