Help me real quick !!

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

What conclusion can you draw from this experiment about the components of the black ink?

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?