For the evolving animals the atoms in air and water were also important resources, but animals were incapable of using the only energy source, the sun, for making their own food.
(the atoms in air and water; were also; important resources) (animals; were; incapable of using the only energy source, the sun, for making their own food)
the atoms in air and water animals
were also were
important resources
incapable of using the only energy source, the sun, for making their own food