To begin with, less than 1% of energy such as from sunlight is used to make food by photosynthetic plants.
(less than 1% of energy such as from sunlight; is used; to make food by photosynthetic plants) (less than 1% of energy such as from sunlight; to make; food)
less than 1% of energy such as from sunlight less than 1% of energy such as from sunlight
is used to make
to make food by photosynthetic plants
food