convection happens because fluids become less dense and expand and riseas they are heated.
global convection currents
Convection.
Heat transfer from the core to the mantle produces slow convection of the mantle material this is what fuels planet movement.
Because, basically, there are no molecules in a vacum that can heat up and carry the heat around.
There are a number of places where you would find convection currents. In most cases they will happen within the geosphere through plate tectonics, hydrosphere through ocean currents and in the atmosphere in form of winds.
convection happens in liquid
No. The crust is rigid; it does not allow convection.
Convection happens in the mantle.
Heat conduction and convection do not happen in space. They don't happen because in space there is no air. Heat only transfers in space by radiation.
No because convection can only happen in liquids or gases.
global convection currents
no
in liquids and gases
asthenosphere
convection
happens in air done
the convection currents will stop