<span>They should study the overall yield over time.</span>
<h2>
Answer: Plant Cell</h2>
Explanation:
A plant cell is the only cell that has all these characteristics. The box-like structure is due to the cell wall, the large central vacuole which helps with the rigidity of the cell, and chloroplast which contains chlorophyll for photosynthesis.
Answer:
I know for a fact that Cellular Respiration releases carbon dioxide. I am guessing combustion (depending if natural or not) and volcanic eruption release carbon dioxide too.