Answer:
C
Explanation:
Let's look at the cellular respiration equation
oxygen+glucose--> water + carbon dioxide + ATP
In the process, oxygen is used. We inhale oxygen and use it in cellular respiration. We then create carbon dioxide which is exhaled out. We don't use the carbon dioxide, so it is the waste product.
Therefore, the answer is C. Oxygen is used, and carbon dioxide is released as waste.
Answer:
it is good to know because once you hit high school your life will change. its good to think a bout because once your 16 you can start a short term job. but as soon as your 18 your gonna want to hang with people so you would need a career so you can start to earn money at a young age so you can see your friends, buy a house, buy a car , etc..
Explanation:
