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Line 1: − It is a [[molecular]] substance with a formula CO<sub>2</sub>. +
move up simpler stuff
'''Carbon dioxide''' is exhaled when you breathe out.
'''Carbon dioxide''' is exhaled when you breathe out.
It is used by plants in the process of [[photosynthesis]] to generate [[oxygen]].
It is used by plants in the process of [[photosynthesis]] to generate [[oxygen]].
It is a [[molecular]] substance with a formula CO<sub>2</sub>.