Arrange the following events in the mantle convection process. Use numbers 1-5.
____a. Lithospheric plates move in the asthenosphere due to the rising and sinking
of materials.
____b. The decomposition of radioactive elements causes heat in the interior part of
the Earth.
____c. Heat slowly rises to the mantle and creates convection current.
____d. Heat moves to the core.
____e. The process repeats as a cycle.