At each energetic transformation in an ecosystem or in an economy, lots of energy is utilized but only a small part is embodied in the product, in a superior form of energy and new (from plants to animals or from coal to electricity).
(lots of energy; is utilized; L:At each energetic transformation in an ecosystem or in an economy) (only a small part; is embodied; in the product)
lots of energy only a small part
is utilized is embodied
L:At each energetic transformation in an ecosystem or in an economy
in the product