The author of the book 'Stuff Matters' mentions that he got into an argument with someone over the use of plastics in movie theaters. The author mentioned that the use of plastics was rather fitting in a movie theater. Why did he think that in the context of movies, usage of plastics was quite appropriate?

Explanation:

Based on the scenario being described within the question it can be said that the main reason for his thinking was that the technology of moviemaking became simplified after the plastic celluloid was used as the basic material for manufacturing photographic film. Thus cutting down the usage of other materials as well as time and cost.

city commissioner and director of the cia.

the answer would be a)henry grady because he came up with the term "new south"