A primary source of anything is a first hand account be it a diary, eye witness account, the person must have experienced it themselves while a secondary the information could have been passed on for example a news paper or memoir on someones life.
that tool would be called a table.
Answer:
I think the answer is D
When 2 plates meet this is called a collision. A collision is when 2 plates collide together
I hope this is right and I hope this helps! I did some research on it so hopefully its right.
Answer:
Fire provided a source of warmth, protection from predators, a way to create more advanced hunting tools, and a method for cooking food. These cultural advances allowed human geographic dispersal, cultural innovations, and changes to diet and behavior.
Explanation: