when the temperature decreases
An upward moving current of air is called an updraft.
No. An updraft (updraught) is an upward moving current of warm air.
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.
A current of cool air is called a draft. Oxygen O2 and Carbon dioxide CO2
A strong air current is a fast-moving flow of air in the atmosphere. It can be caused by a variety of factors, such as temperature differences, pressure gradients, or air masses colliding. Strong air currents can impact weather patterns and movement of objects in the atmosphere.
to form
to form
from holding their breath and ascending.
Ascending unsaturated air expands as it rises due to lower atmospheric pressure at higher altitudes. Conversely, descending unsaturated air compresses as it descends to higher pressure levels closer to the surface.
An autorotation is the rotation of the blades of a helicopter due to the presence of ascending air.
Ascending air typically cools as it rises, leading to decreased humidity. However, if the air is too dry to reach its dew point, condensation cannot occur, preventing cloud formation. Additionally, if the rising air is stable, it may continue to rise without cooling enough to condense moisture, further inhibiting cloud development. Thus, adequate moisture and instability are essential for cloud formation in ascending air.
The ascending branch of a convective current may produce an upwardly billowing cloud known as a cumulonimbus cloud. These clouds are characterized by their towering structure and are often associated with severe weather, including thunderstorms, heavy rainfall, and even tornadoes. The strong upward motion of warm, moist air facilitates the development of these impressive clouds.
Saturated air contains relaitvely higher amount of water molecules. Thus it requires much time to cool. Whereas in case of unsaturated air, the number of water molecules are less. So, it's much obvious that lesser amount of water molecules require less time to cool.
A star!
Because the pressure of air may be greater than the pressure of the ascending Mercury.
The vertical rising or sinking of air is known as the air current
The heat transmitting process in the atmosphere you are referring to is convection. As air near the Earth's surface is heated, it becomes less dense and rises, creating ascending air masses. As this air rises, it cools, becomes denser, and eventually descends back to the surface, creating a convection loop.