Answer:
Clearing the land to raise crops
Explanation:
During the process to clear the land, humans began to understand how to deal with plants, and which species are better adapted to that kind of land. Plus, while understanding how to plant and crops, humans also tried to create tools and techniques to obtain the better of the plantation. A good example is the use of canals to control the water and to use it in the plantation, but especially how to organize each part of the plantation.
In this case, they really are attempting to determine : <span>the unstated, primary causes of the conflict
When each parties that involved in the conflict started to analyze their opponent's interest, they will start to see things based on the opponent's point of view, so they will be more likely to create a compromise that benefits both of the parties.</span>
A. Because the Egypt and Indus valley are in the desert, living near a river gave access to a food supply, water and better soil for growing crops. There were better resources to build shelter, and the river provided a safe route of transportation to other areas.
Confounding variables are stimuli other than independent variables that may affect the outcome of the study and lead to erroneous conclusions. These variables become a factor when researchers are unable to prevent or eliminate them. These variables can make the results found during experiments invalid because they do not reflect the original variables in the experiment or research.