In fact, plants and trees, which consist mostly of carbon, get most of the materials they need to exist from carbon dioxide, a gas in the air.
(plants and trees; consist mostly; of carbon) (plants and trees, which consist mostly of carbon; get; most of the materials) (they; need; to exist from carbon dioxide) (the materials; to exist; from carbon dioxide)
plants and trees plants and trees, which consist mostly of carbon they the materials
consist mostly get need to exist
of carbon
most of the materials
to exist from carbon dioxide
from carbon dioxide