A17-year-old male was shot in the right anterior chest during an altercation with a gang member. as your partner is applying high flow oxygen, you perform a rapid secondary assessment and find an open chest wound with a small amount of blood bubbling from it. you should:

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

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.