During school industrial revolution which building material became one of the most important in the world

During the Second Industrial Revolution, steel became one of the most important building materials in the world.

I believe its either Railroads since at the time iron was being used alot or the use of machinery

answer; the mayans and

•an essay

•a mock-heroic epic  

•deals with cannibalism  

•introduces “sylphs” as guardian spirits  

•not a satire  

•written by daniel defoe

•written by alexander pope

•written by jonathan swift  

•criticizes the exploration of ireland  

•criticizes impulsive nature  

•criticizes the english upper class  

•playful tone  

•remorseful tone

•matter-of-fact tone  

“the rap of the lock”   written by alexander pope.

“a modest proposal”