Answer:
<em>B. Tribes lived in isolation and did not interact with each other</em>
Explanation:
<span>i believe it is support for or advocacy of social reform. Hope i helped u??</span>
For me, it is the Helsinki Accords were Ford's most noteworthy remote approach achievement and the Camp David Accords were Carter's. The Helsinki Final Act was an understanding marked by 35 countries that finished up the Conference on Security and Cooperation in Europe, held in Helsinki, Finland.
The reason he wasn't able to finish his speaking tour was because he had a stroke, so he died.
Answer: the hunters adapted to the change in their environment by hunting smaller prey and they fished and gathered edible plants and fruits.
Explanation: hope this helps :D