It is bumping into the lihosphere
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A convection cell turns up due to the heating of a fluid, which decreases its density. As the warmer, less dense fluid rises, it creates a low-pressure area below. This upward movement pulls in cooler, denser fluid from the surrounding area, creating a continuous cycle. The process is driven by the balance of buoyancy and gravity, leading to the characteristic circular flow of convection cells.
the cell is open from the conifer and causes it to break up
In a convection cell, as the material moves from point b to point c, it typically experiences an increase in temperature due to the heat rising from the lower layers. As the material heats up, its density decreases, causing it to rise further. Conversely, as it moves away from the heat source and begins to cool towards point c, the temperature decreases, leading to an increase in density. This cycle of heating and cooling drives the convection currents within the cell.
During convection, hot material rises due to its lower density, creating a current that transfers heat from the hot material to cooler material. This process then causes the cooler material to sink and cycle back towards the heat source, creating a continuous convection current.
coolness
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The convection cell turns upward at point A due to the rising of warm air near the Earth's equator. As the warm air rises, it creates a low-pressure system, which causes the air to flow towards the poles at high altitudes. This flow of air completes the convection cell cycle.
The convection cell turns down at point c due to cooling of the air parcel at that elevation. As the air cools, it becomes denser and starts to sink. This sinking motion creates a downward convection flow in the cell.
In a convection cell, warm air rises due to being less dense than cooler air. As the warm air rises, it creates a low-pressure area at the surface, causing cooler air to be drawn in. This cycle of warm air rising and cool air sinking creates the convection cell's overturning motion.
heat from the outer core and the mantle when it drifts up to the asthenosphere it causes convection.
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A temperature difference within the fluid and a gravitational force are necessary for a convection cell to be set up. The warmer fluid rises due to lower density, while the cooler fluid sinks due to higher density, creating a circular motion known as a convection cell.
Uneven heating of different air masses causes the bottom ones to heat up, rise, cool off, and fall in another location in a cyclic motion.