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

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.