Question

PLEASE!!! THANK YOU!!!!

Percentage of oxygen in inhaled air and exhaled air experiment.
Aim:

Hypothesis:

Variables:
a. Manipulated
b. Responding
c. Constant

Apparatus/Material:

Figure:



Procedures/Methods:


Observations:


Interprete Data:


Discussion:



Conclusion:
​

Answer 1

the amount of inhaled air contains 21% of Oxygen and 0.04% of carbon dioxide while the air we breathe out contains 16.4 % of Oxygen and 4.4 % of carbon dioxide