_____ supports combustion.
Carbon dioxide is neither combustible nor a supporter of combustion.
The element carbon is combustible and the element oxygen also supports combustion. What can you say about the nature of compound carbon dioxide?
Which of the following statement is not correct about carbon dioxide acting as a fire extinguisher for electrical fires ?
(a) it is heavier than air
(b) it is lighter than air
(c) it is not combustible
(d) it does not support combustion