A Gas Expelled During Respiration, __ Dioxide

This page is the CodyCross answer for the clue below from Rainforest, Group 1202, Puzzle 4 (Carnivores).

Question is: A Gas Expelled During Respiration, __ Dioxide

and the answer is: CARBON

Word Meaning:

CARBON — (uncountable) The chemical element (symbol C) with an atomic number of 6. It can be found in pure form for example as graphite, a black, shiny and very soft material, or diamond, a colourless, transparent, crystalline solid and the hardest known material.

Definitions from Wiktionary.

A gas expelled during respiration, __ dioxide — CodyCross Answer | CodyCross Solutions