Question

Sean drew this diagram and labeled an unknown gas A. Which gas does A represent?

Answer 1

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

Answer 2

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.