Final answer:
Discrimination is negative actions based on biased thinking, while ethnocentrism is the belief in cultural superiority. Colonialism involves exploitative policies and practices.
Step-by-step explanation:
Discrimination refers to negative actions taken against a group of people based on biased thinking or prejudice. It can be based on various factors such as race, ethnicity, age, religion, and more. Examples of discrimination include unfair housing practices, biased hiring systems, and exclusion from social circles.
Ethnocentrism is the belief that one's own culture is superior to others. It can lead to harmful and exploitative behaviors towards other groups. Colonialism refers specifically to the policies and practices by which a powerful country takes control of and exploits another territory, often resulting in harm and subjugation of the native population.