What a given group of people appreciates"" are their .

Cultural values

Explanation:

Cultural values are the values and norms that are followed by a distinct society or a group of people. In other terms, values and norms developed within the society to form its basis are said to be the cultural values. The people believe, follow, and appreciate the values. They help in defining the ways of living and leading the life. The behavior, nature, and thinking of the society is influenced or structured as per the cultural values.

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it is the boston port act

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.