Answer:
The answer is letter C.
Explanation:
People who are living in the mountains tend to be more isolated than the other populations. This is because the mountains isolate them. A language spoken in one place divided by a mountain will differ from the other side of the mountain.
This explanation is highly related to the earth's ecosystem. Once an ecosystem is divided, each gives rise to new species. Similarly, it means that once people's community are divided by mountains, it then gives rise to new languages that can never be spoken elsewhere.
It is said that nature such as rivers and mountains greatly shape the language of people.
(A) A CIA-trained force of Cuban refugees launched a failed attempt to....
It used oligarchy, rule by a few.
Civilization? I don't know the song/poem, so according to what ai have here this is my best guess...
Sorry I can't hell more!
Answer:
living things changes over time
