Yes. (As the density falls, it expands.)
Warm air rises and then comes down as cool air, and the opposite is also true.
Cool air goes towards the ground while heat air rises... ice chills go down, fire's smoke and heat rises
Warm air is less dense than cool air, so it rises upward. As it does so, the fast moving, compressed particles in the air begin to slow down and expand, causing them to cool (since fast-moving particles create heat, and slower-moving particles are colder).
yes the cool denser air sink while the warm less dense rises
Because warm air is less dense then cool air.
Convection
When warm air rises, it expands and cools as it does so. This cooling causes the moisture in the air to condense, forming clouds and potentially leading to precipitation. This process can contribute to the formation of weather systems such as thunderstorms or frontal boundaries.
No. Convection occurs when warm air rises and cool air sinks. It is not limited to air, either, but can occur in virtually any liquid or gas.
When warm air rises and cool air sinks, a convection current is created. This is due to the difference in air density caused by temperature variations. Warm air is less dense and rises, while cool air is denser and sinks, creating a circular flow of air.
Cool air rises because it is denser than warm air. As cool air sinks, it displaces the warmer air, causing it to rise. This movement creates convection currents, where cooler air sinks and warmer air rises, leading to a continuous cycle of air circulation.
As air rises it decompresses, as pressure decreases with increasing altitude. All gasses cool when decompressed. This process is called adiabatic cooling.
Warm air is less dense than cool air, so it rises upward. As it does so, the fast moving, compressed particles in the air begin to slow down and expand, causing them to cool (since fast-moving particles create heat, and slower-moving particles are colder).