A convection current, however, this can also occur with gases.
It can occur through conduction, convection and radiation.
Convection only occurs in fluids. Fluids are gases or liquids.
nothing
BLA
Convection currents are in the liquid and gas states.
Convection occurs when and where a fluid is in a gravity field and heat is applied to its base.
Convection occurs in any liquid or gas that has variations in density due to uneven heating.
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.
A convection current, however, this can also occur with gases.
Convection currents can occur in either a gas or liquid medium but not in a solid medium (so you can have them in air, and you can have them in magma, but you can't have them in solid rock) and they only occur when there is a temperature difference, so that hotter, less dense material will rise, and colder, denser material will sink.
The core
no
Convection is caused by temperature differences, in a gas such as air, which affect the gas density in local areas thus causing movement of the gas, generally upward due to buoyancy of warmer gas compared to the average density. Thus heat from a heating element near the floor of a room can be spread through the room without any forced circulation.
It can occur through conduction, convection and radiation.
Convection
Convection only occurs in fluids. Fluids are gases or liquids.