A sociologist who studies the use of architectural elements, building materials, paint, and lighting in a historic district is studying .

material culture

Explanation:

A sociologist who studies the use of architectural elements, building materials, paint, and lighting in a historic district is said to be studying material culture.

Material culture refers to the aspect of social reality which had to do with the objects and the architecture by which humans are surrounded. It has to do with the usage, creation, trading of objects.

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska

answer; belief perseverance;