Answer:
stillbirth
Explanation:
stillbirth defined: the birth of an infant that has died in the womb (strictly, after having survived through at least the first 28 weeks of pregnancy, earlier instances being regarded as abortion or miscarriage
chemical contaminations means the contamination of environment by chemical substances like chemical released by industried in water, buring of chemicals in air tjat cause air pollution etc... hope it helsp u
Answer:
Heredity is considered a controllable risk factor.
