Why did countries, like great britain and others, practice imperialism? what were the reasons for
colonizing certain areas of the world?

Various motives prompt empires to seek to expand their rule over other countries or territories. These include economic, exploratory, ethnocentric, political, and religious motives. Economic: Imperial governments, and/or private companies under those governments, sought ways to maximize profits.

Explanation:

it allows shippers to carry commercial goods, which allows them to save time and money.