Which of the layers of the Earth has convection currents?f the layers of the Earth has convection currents?

The two layers of the Earth in which convection currents take place are the outer core and mantle

Explanation:Heat from the core and the mantle itself causes convection currents in the mantle. ... Convection currents like these have been moving inside Earth for more than four billion years! There are also convection currents in the outer core.

fe 55.85 g/mol and h2o 18.02 g/mol.