Mixing chemicals with waste in sewage holding tanks or septic. systems may produce toxic fumes, corrode pipelines and tanks, and. pollute soil and ground water when discharged. When chemicals, such as formaldehyde, are added to septic systems, they can cause. bacteria in the system to die.
The cervix is the opening to the womb. Itâs located between the vagina and the uterus and plays a crucial role in pregnancy and labor. During pregnancy, it remains closed and the opening is blocked with a mucus plug.
1 Open Cervix During Pregnancy The cervix is the opening to the womb or the uterus. 2  It is the lower tubular part of the 3  ... Cervix Bleeding In Pregnancy It is only natural for you to get worked up if you happen to notice bleeding during any ...