The amount of protein generally consumed daily by strength athletes is:

Proteins are large bio-molecules that contains one or more long chains of amino acid remains. Its source is meat, poultry, seafood and such; the amount of protein that is recommended for the endurance of athletes on a relative basic is 1.2-1.4 grams per day.

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.