What are the factors that determine the level of harm an introduced chemical

has on the enviroment?

PLEASE ANSWER QUICKLY

The factors that determine the level of harm an introduced chemical has on the environment depends on the type of chemical it is, the concentration of the chemical, and weather conditions that are occurring at the time that the chemical was introduced( like air pollution) ( acid rain) ( deforestation) ( desetfication)

That's false, when you're born your skull has not fused together yet.