the fact that due to density changes it sinks
It is bumping into the lihosphere
ice cream
A stem cell
It is the gravitational force of the sun. The sun is the biggest body in the solar system. So in turn if you know gravity, the smaller body always rotates around bigger body. But this can only happen on a planetary scale.
Yes, heat energy inside the Earth causes convection currents in the mantle, which in turn move the tectonic plates above them. This movement is a key factor in plate tectonics and the formation of Earth's surface features.
coolness
The Coriolis force causes the convection cell to turn to the left at point A. This force is a result of the Earth's rotation and deflects moving air or water to the left in the Northern Hemisphere.
Too much heat causes the cell to turn down.
coolness
It is bumping into the lihosphere
coolness
ice cream
ice cream
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.
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.
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.
ice cream