Are best known as a social structure
Answer:
What they hear from other sources
Explanation:
If you are not interested in a topic say political issues, you will just say what you catch here and there from friends, TV, family, and radio. You wont study it to tell what you really think.
Answer:
I don't get your question can you be more specific
Explanation:
There are many landforms that can prevent expansion- bodies of water, mountainous terrian, and a desert are some examples.
