... release of carbon dioxide into the atmosphere
Answer: It is important to control the variables so the evidence from the experiment are as accurate as possible.
Answer:
Creating a high concentration
Towards the low concentration
Explanation:
Answer:
it stores and controls water in the cell
Explanation:
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..