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.
cervix in early pregnancy the lower end of the uterus is a narrow tubular shaped structure that is called the cervix it extends into your vagina and fills with secretions during pregnancy to form a protective barrier called the mucus plug when you re pregnant your cervix is in a firm long and closed position until the third trimester it is possible to check if you re pregnant by checking the position of cervix in early pregnancy but it s not a highly reliable way of confirming