Why would it dangerous if your nervous system didn’t alert you to pain when u break a bone

well the pain you should be in you wouldn't fell so that means you could make the injury worsene and could get and infection

Explanation:

cuzz that's just how it woks If you get a cut you might fell pain in that spot but if you can fell pain that cut will go unnoticed

it can get infected

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.