Verified Answer :

scme1702

The gas is carbon dioxide since carbon dioxide is the result of both combustion and respiration.

superman1987

The Correct answer is Carbon dioxide CO2.


The Explanation:


according to the diagram:


we can see that the arrows which going to A are from:


1- respirition of the tree . and the CO2 gas is the result and produced gas from respiration.


2- The Combustion went from Home : and the CO2 gas is also the produced gas from the combustion process.


∴ (A) refers to CO2 (carbon dioxide) gas.

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