Smoke rises in a closed room because it is less dense than the surrounding air.
thare will be no wind
Smoke rises because it is less dense than the surrounding air. When something burns, it releases hot gases that are lighter than the cooler air around them. This causes the smoke to rise upwards, following the path of least resistance.
Being hot, it has expanded, and weighs less than the air it displaced.
My guess is that it's because smoke is hot. Hot air rises, just as cold air sinks. When a fire ensues, smoke (the product of carbon combustion) rises with the hot air.
Smoke is a collection of tiny particles and gases that take up space as they spread out in the air. When smoke is present in a room, it fills up the available space because the particles are interacting with the air molecules and occupying that volume.
Smoke disappears when the particles that make up the smoke are dispersed and eventually dissipate into the surrounding air. This can happen through a variety of processes such as diffusion, ventilation, or chemical reactions with the air.
No, it is not safe to shoot an arrow straight up into the air. The arrow can come down at a high speed and cause injury or damage to people or property. It is important to always follow proper archery safety guidelines and never shoot arrows straight up into the air.
government brings up taxes on cigars so people will not smoke.
Smoke goes up from chimneys, cigarettes, campfires, and assorted other locations of combustion.
Smoke rises because it is hotter and less dense than the air around it. The chimney is designed to create a draft that pulls the smoke up and out of the fireplace, preventing it from flowing back into the room. This draft is created by the temperature difference between the inside and outside of the chimney.
Straight across