PLEASE answer these for a brainlist

What are some examples of the flint water crisis? What are adults experiencing in their water and what are the effects on the kids?

What are the safe levels of Lead exposure?

What is the relationship between the blood levels in people and crime rate?

What was the decision made by Flint to save money on water?

What happened in October 2015? How did the water switch affect the people's blood lead levels?