When groups of people are displaced to a new country because they flee in fear of their lives from their homeland, they might choose to settle together in a community in a new location and try to maintain their ethnic identity. this demonstrates the concept of
1. diaspora2. genocide3. heterogeny4. linguistics

The correct answer is 1. diaspora

Explanation:

The meaning of diaspora is to be scattered so diaspora is the population of the people who scattered in a region that are away from their homeland because they flee in fear of their lives from their homeland and occupy to settle together in a community in a new location and try to maintain their ethnic identity.

The most famous example of the diaspora is Jewish diaspora that consists of the community of Jewish people outside their homeland i.e., Israel. According to the migration report by the UN, the world's largest diaspora is Indian diaspora.

Therefore the correct answer is 1.diaspora.