Where natural cycles of plate tectonics provide a powerful indrawing force, the planets own hot convection processes can melt and remix elements that had been rationed into tools and civilised implements.

The Himalayas block the transport of air masses, pushing them upwards, boosting the convection process, and amplifying the monsoon rains.

The distribution of energy from the rising hot water to the sinking cold water contributes to the convection process.

Iron rain as part of atmospheric convection processes is possible only in brown dwarfs, and not in small stars.

The convection process wasn't perfectly efficient, and energy, struggling to escape from the inner regions, was forced to dissipate itself in a complex, space-filling array of turbulent cells.

In stars, the convection process is known to be highly efficient, with a typical that only exceeds the adiabatic gradient by 1 part in 10 million.

This convection process causes the lithospheric plates to move, albeit slowly.

This has been explained by some as the result of convection processes whereby warmer soil and water at depth expands, becomes less dense and rises, while gravity forces denser soil downwards.

Their concentration can be reduced by growing ZBLAN in zero gravity (see figure) which reduces convection processes.

Note that in common use the term convection may refer loosely to heat transfer by convection, as opposed to mass transfer by convection, or the convection process in general.