Answer:
The correct answer is option d.
"All of the above are reasons the carbon, oxygen, and nitrogen cycles are vital to life on Earth".
Explanation:
Carbon, oxygen, and nitrogen cycles are vital to sustaining life on Earth because these cycles allow that carbon, oxygen and nitrogen are in an usable form by organisms. This is very important because carbon, oxygen and nitrogen are vital elements for organisms, as these elements are used to synthesize the most important molecules used for biological processes. Also, the carbon, oxygen and nitrogen cycles are an important interface between biotic and abiotic factors. For instance, the oxygen cycle allows aerobic organisms to take atmospheric oxygen into their cells to perform cellular respiration.
