Heat is transferred into and out of near surface layers owing to external heating by the thermal processes of conduction, convection, and radiation.
(Heat; is transferred; into and out of near surface layers) (near surface layers; owing; to external heating by the thermal processes of conduction, convection, and radiation)
Heat near surface layers
is transferred owing
into and out of near surface layers
to external heating by the thermal processes of conduction, convection, and radiation