How are the carbon, oxygen, and nitrogen cycles vital to sustaining life on earth? a. carbon, oxygen, and nitrogen are vital components of life on earth. b. the carbon, oxygen, and nitrogen cycles allow vital elements to return to usable form by organisms. c. the carbon, oxygen, and nitrogen cycles are an important interface between biotic and abiotic factors. d. all of the above are reasons the carbon, oxygen, and nitrogen cycles are vital to life on earth.

Answer;

B. The carbon, oxygen, and nitrogen cycles allow vital elements to return to usable form by organisms.

Explanation;

-Carbon, nitrogen, and oxygen cycles are biogeochemical cycles.The carbon, oxygen, and nitrogen cycles are all biogeochemical cycles. They show the movement of elements through living and nonliving components of the Earth. Carbon, oxygen, and nitrogen, are essential components of life that pass through organisms and nonliving components, but are never used up.

-Nutrients cycle through the environment endlessly. Producers play a vital role in the cycle of carbon. Phosphorus cycle keeps phosphorus availability slow. Nitrogen cycle relies on bacteria that make nitrogen useful to organisms & bacteria that can return it from the atmosphere.

they deliver oxygen to the blood

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!