After creating a fate map of an embryo you identify a patch of cells that gives rise to muscle in the adult animal. You remove one of those cells and grow it in culture. When you perform this manipulation the cell does not give rise to muscle cells. What does that tell us about the commitment of that cell?

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.