factory/factories
The word many means a large number. You could say, many people supported the building of a new library, or you could say a large number of people supported the building of a new library. These sentences have the same meaning.
There were many people injured while building the Chrysler Building. There were seven people killed while building the Chrysler Building..
arena
A country.
how many people were ivolved building the London Gherkin
well... its hard to answer but in a large office building u could say that in one hour maybe a good 70- 90 people.
80.000 people work in the chrysler building
None
A city is a large community with many people.
there were 3,400 workers building it
there were 3,400 workers building it
8 people died during the building of the titanic:)$!#