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.
The cervix is the opening of the uterus and it sits at the top of the birth canal/vagina. During pregnancy, it feels like the tip of your nose. During labor it becomes softer, like puckered lips. Eventually it becomes so soft and thins out so much, you canât feel it.