Most of the total energy expended in a lightning discharge goes into light and heat, with a small amount of the latter transforming to sonic energy.
(the total energy; expended; L:in a lightning discharge) (Most of the total energy; goes; into light and heat) (the latter; transforming; to sonic energy)
the total energy Most of the total energy the latter
expended goes transforming
L:in a lightning discharge
into light and heat
to sonic energy