The yellow material under the wallpaper is likely the original adhesive or primer that was applied to the wall before the wallpaper was installed. This material can turn yellow over time due to exposure to light, moisture, or aging. It is common to see this yellow material when removing old wallpaper as it can be left behind on the wall surface. **

Yellow stains can form along non-woven wallpaper seams after wallpapering due to a variety of reasons. One common cause is moisture getting trapped between the seams during the wallpapering process, leading to mold or mildew growth. Another reason could be the use of low-quality adhesive or improper application techniques, causing discoloration over time. Additionally, if the walls were not properly cleaned or primed before wallpapering, this can also contribute to the formation of yellow stains along the seams. **

The Monstera cutting may be turning yellow due to overwatering, which can lead to root rot and nutrient deficiencies. It could also be a sign of too much direct sunlight, causing the leaves to burn and turn yellow. Additionally, inadequate drainage or poor soil quality can also contribute to the yellowing of the cutting. It is important to assess the watering schedule, light exposure, and soil conditions to determine the cause of the issue and take appropriate corrective actions. **

Textured wallpaper typically has a raised design or pattern that can be felt when touched, adding depth and dimension to a wall. Structured wallpaper, on the other hand, has a more defined pattern or design that is often embossed or engraved onto the surface, creating a more uniform and precise look. Foam wallpaper is made from a soft, cushion-like material that provides a tactile and three-dimensional effect, offering a unique texture and feel to the wall. Each type of wallpaper offers a different aesthetic and can be used to achieve various design goals in a space. **

Textured wallpaper has a raised design that can be felt when touched, adding depth and dimension to a wall. Embossed wallpaper also has a raised design, but it is typically more subtle and can be painted over easily. Foam wallpaper is made from a soft, cushiony material that adds a tactile element to a room and can help with soundproofing. Each type of wallpaper offers a unique look and feel, allowing for different design possibilities. **

If the wallpaper peels off while painting, there are a few solutions you can try. First, you can try to reattach the peeling wallpaper using wallpaper adhesive or a strong glue. Another option is to carefully remove the peeling section of wallpaper and then patch and smooth the wall underneath before repainting. If the wallpaper is too damaged, you may need to remove it entirely and repaint the wall. It's important to ensure the wall is clean and dry before attempting any repairs to prevent further peeling. **

If the wallpaper is peeling off when painting, there are a few solutions you can try. First, you can try to re-adhere the peeling sections using wallpaper adhesive or a strong glue. Another option is to carefully remove the peeling sections, sand the edges, and then repaint the wall. If the wallpaper is too damaged, you may need to remove it entirely before painting the wall. **

The cutting of the Monstera may be turning yellow due to overwatering or underwatering. Overwatering can lead to root rot, which causes the leaves to turn yellow. On the other hand, underwatering can also cause the leaves to yellow and eventually die. It's important to ensure that the cutting is receiving the right amount of water and that the soil is well-draining to prevent waterlogged roots. Additionally, the cutting may also be experiencing stress from environmental factors such as too much direct sunlight or low humidity, which can also cause the leaves to turn yellow. **