If a historian wanted to determine whether iron tools could be found in the ruins of an ancient african city which kind of expert should he consult

Archaeologist

Explanation:

The person who could determine whether iron tools could be found in the ruins of an ancient African city would be an archaeologist. Archaeology is the study of human activity through the recovery and analysis of "material culture." Iron tools would be considered a part of this "material culture." It also includes artifacts, architecture, and cultural landscapes.

d: their own individual powers within the new goverment

bujías y una hora antes y no me parece muy difícil