Answer:
I dont now but I think it is correct
Its inorganic as MgCO3 is contains no carbon more hydrogen which is a crutial component of all organic compounds
It is more slippery, and it is heavier
During the dark ages-All that wasn't around the christian religion were lost. Knowledge and discoveries before the Dark Ages were mainly in Greek ideas. Biblic scripts however were in Latin. Therefore all inventions up to the dark ages were lost and only religious scripts preserved in the churches. Outside the church, no one knew how to write, read or even communicate.