Why do you hear marbles when no one is upstairs at night?

At night, when no one lives upstairs, you will hear the sound of marbles for the following reasons. Nobody upstairs has the sound of marbles. It's mold that falls to the ground, so don't be afraid, because it's the sound produced by the corrosive substances of mold in the building, which is not too harmful to the building, so we don't have to worry or be afraid. It is very sad for us to encounter such a problem in the house. We won't be afraid if some children smash toys or have no influence on our lives, but if no one lives there, there will be the sound of marbles, and we will be very afraid. I checked some reasons today. It turned out that there was a musty sound in the soil in the building. These molds can survive in the floor because there are some bacteria in the concrete, and a little air can make it survive. When it reaches a certain amount, cracks will appear, leading to the sound of marbles. This is also because the floor will get bigger when it is hot and shrink when it is cold. Small changes will be magnified, and we can hear them clearly. Our life is scientific, so we should deal with it after the phenomenon happens, so we don't have to worry about it. When decorating, you must also use more environmentally friendly materials to decorate to avoid many phenomena in the later period. Mold food is eaten with cement minerals, and its function is to corrode cement. Generally, there are many pores, and the ceiling is made of steel bars. It is very normal that the internal stress of cement is uneven and there are cracks.

Over time, it will become hollow and the pipes will move back and forth, which is the reason why the concrete has changed, so there will be the sound of marbles at this time. Whether it is mold or people's stress, people will have auditory hallucinations when they are under too much pressure, because they will oppress their nerves, and this phenomenon will also occur when they lose sleep at night and are in a bad spirit. But for different opinions, no matter what the reason, we should keep a good attitude and avoid being afraid at night. Putting us to sleep can also avoid this phenomenon, because their voices are very small, as long as we don't listen.