Human dwellings in early mesopotamia were made of bricks and wood. stones and clay. mud and grass. steel and concrete.

Option: mud and grass  

Explanation:

During the early period in Mesopotamia, houses built with mud and grass. Geographical condition played a major role in building houses of mud and grass because other items like stone and woods were imported from other places. The availability of mud and grass in the region helped them to made human dwelling easily that lasted for long.  

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