Input (grade 8): In the Middle Awash River Valley, cone-shaped depressions of reddish clay were found that could have been created by temperatures of 200 Â C/O. These features are thought to be burned tree stumps such that they would have fire away from their habitation site.
Output (grade 8): In the Middle Awash River Valley, cone-shaped depressions of reddish clay were found that could be made by temperatures of 200 Â C/O. These features are thought to be burned tree stumps such that they would have fire away from their habitation site.