Carbon dioxide is produced when fossil fuels are used to generate energy or when forests are cut down and burned.
(Carbon dioxide; is produced; T:when fossil fuels are used to generate energy or when forests are cut down and burned) (fossil fuels; are used; to generate energy) (fossil fuels; to generate; energy) (forests; are cut down; ) (forests; burned; )
Carbon dioxide fossil fuels fossil fuels forests forests
is produced are used to generate are cut down burned
T:when fossil fuels are used to generate energy or when forests are cut down and burned
to generate energy
energy