Producing cement at a site uses.........A -- energy resources only B -- energy resources and renewable materialsC -- energy resources and non renewable materials D ---- renewable materials onlyQuick answers would be greatly appreciated!!!!!!!
I would have to say C but B is also attractive. I could make the case that the rock that is used for cement is the result of hundreds of thousands of years in geologic processes. The energy spent to produce the cement is used. However, I could say that cement is very reusable. Old cement can be ground up and reused quite readily. sorry but the question is quite open ended. That is unless your teacher specified an answer in class and you just didn't catch it!
