Me ayudan con esta tarea porfavor?

i dont know it at allnow im just getting points at this pint

a lot of people sadly don't know the best way to learn is cheating off of your friends or this amazing thing called google

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.