Forests have been called the &quot;lungs of the earth&quot; because animals inhale oxygen and exhale carbon dioxide in the process of breathing, and plants take in carbon dioxide and give off oxygen in the process of photosynthesis.
(Forests; have been called; the &quot;lungs of the earth&quot) (animals; inhale; oxygen and exhale carbon dioxide in the process of breathing) (plants; take; L:in carbon dioxide) (plants; give off; oxygen; L:in the process of photosynthesis)
Forests animals plants plants
have been called inhale take give off
the &quot;lungs of the earth&quot
oxygen and exhale carbon dioxide in the process of breathing
L:in carbon dioxide
oxygen L:in the process of photosynthesis