Answer:do so because they get something in return
Explanation:This simply is the concept of buying and selling. Every item or service rendered has a placed value. This value in most case can be in cash or kind.
Answer:
we don't see your part D.
Explanation:
You have to answer based on what you anwered on the previous subquestion
Answer/Explanation:
An irrigation system represents a stable food supply because it is how they controlled water to be able to plant crops. A second most important artifact that is in the category of stable food supply is the plow. Agriculture produced enough food that people became free to pursue interests other than worrying about what they were going to eat that day.
Answer:
elevator
Explanation:
also if you dont mind giving me brainliest im just trying to rank up. only if u dont mind though