Explain the difference between steel structure and concrete in building

please write this essay between 1500 to 1800 words . and please write with low level of writing ( foundation level ) and please mention the following points :

differences between two substances.

compare between the two substances in any 5 perspectives such as strength , flexibility , cost , ect.

use this reference (2) Hassan K.AL-Nageim,2005,steel structure practical design, 3rd edn, 2 park square,Milton park,Oxon OX144RN ) and three more references one book one journal snd one website .

please check the following link to see the literature review :https://www.dropbox.com/s/l1tf2yxchfv3p12/Literature%20review%20english%202.docx?dl=0

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