What does it mean to live in a heterogeneous society?

 It means to live with people of different backgrounds, race, culture and so on .

Explanation:

A heterogeneous society refers to a society where people of different race, culture, social classes, languages, dialects, ethnic groups, culture, traditions and so on live together in peace.  Heterogeneous society makes it possible for people of different culture to come together and create new things. Examples of heterogeneous societies include: US, Canada and so on.

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]