How does Cellular Respiration add carbon to the Carbon Cycle?

during the carbon cycle animals and plants out carbon dioxide to the atmosphere through cellular respiration and plants remove carbon dioxide through photosynthesis

c. heat from the poles back down towards the equator.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.