<Dd> <Dl> <Dd> O + hν → 2 O </Dd> </Dl> </Dd> <Dl> <Dd> O + hν → 2 O </Dd> </Dl> <Dd> O + hν → 2 O </Dd> <Dd> Each oxygen atom then quickly combines with an oxygen molecule to form an ozone molecule: <Dl> <Dd> O + O → O </Dd> </Dl> </Dd>

Which of the following statements is true the nitrogen cycle is the most important cycle for life