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

The correct answer is - d.. All of the above are reasons the carbon, oxygen, and nitrogen cycles are vital to life on Earth.

These three gases are the basis of the life on Earth. They are the ones that manage to interconnect the biotic and abiotic factors. Namely, these gases are regulating the temperature on our planet, they are used by the living organism for their survival, by using them as essential components in their vital processes, like breathing and performing photosynthesis, the nitrogen also serves as excellent soil fertilizer, they contribute even to the processes of weathering, thus changing the surface on our planet...

answer; ///(true)/// fusion occurs in the sun's core;

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.