What is an example of how the environment of a group shapes the language of that group?

All groups share the same languages.

All groups have a word for reindeer that is the same.

People in a tropical region have no word for reindeer because they have never encountered one.

Groups in different environments always have the same language.

The last statement is incorrect. The environment of a group can indeed shape the language used by that group. For example, let's consider a group of people living in a coastal fishing community. The environment of this group, characterized by ocean and maritime activities, will influence their language in several ways:

1. Vocabulary: The language of this group is likely to have a rich vocabulary related to fishing, sailing, and marine life. They may have words specific to various types of fish, fishing techniques, boat parts, and navigation.

2. Terminology: The specific terms used within this group for fishing methods, boat types, and equipment may vary from those used in non-coastal communities. For example, they may refer to a type of boat as a "skiff" instead of a "canoe."

3. Idioms and expressions: The environment can also influence the idioms and expressions used within a group's language. In this coastal community, they may have sayings or expressions related to fishing or the sea, such as "like a fish out of water" or "smooth sailing".

4. Dialects: The environment can also contribute to the development of distinct dialects within a language. Coastal communities may have their own unique pronunciation or accents influenced by their maritime surroundings.

These examples illustrate how the environment of a group can shape the language they use, incorporating vocabulary, expressions, idioms, and dialects that reflect their specific experiences and activities in their surrounding environment.