You can have what is called a membrane sweep, or, better yet, have a few of them and that should help rupture your membranes and amniotic fluid will gush out sooner than if you had nothing done.
Your water will break naturally. To induce it would be to artificially break it.
Something that will break down naturally is called bio-degradable.
Chlorine can be naturally removed from water through processes such as evaporation, exposure to sunlight, and chemical reactions with organic matter. These methods help break down chlorine molecules, making the water safe for consumption.
Mist can be stated as a form of water vapour. It is included with water molecules. So naturally mist makes the temperature decreased and makes us feel cold.
Ice naturally makes cracks when it is frozen. Not large cracks, but cracks. Water seeps in through these cracks and freezes them. The crack expands due to the frozen water, or new ice. The cycle continues over and over again until the piece of ice finally breaks.
Water and freezing/cold weather can make rocks break. The water makes the rocks break when it goes into the rock cracks. When the weather gets cold/freezing the water expands and the rock breaks. Or with a really good hammer. LOL:P
Biodegradable.
No sulfur dioxide is not present naturally. It pollutes the water.
Nobody makes isthmuses. They are naturally-occurring geological formations.
Water expands when it freezes. In winter, water gets into minute cracks in the rocks and then as it freezes it expands and makes the cracks bigger. So more water gets in then freezes so the cracks get bigger still until the rocks break apart.
it makes them water resistant
Atoms can decay naturally but they are generally broken by human power. Atoms can also break during a collision with another atom in an atomic fission or fusion reaction.