The diagram shows a representation of the nitrogen cycle in an ecosystem. Different pathways and stages are labelled with letters A to G.
The table lists some of the stages involved in the nitrogen cycle.
Complete the table by giving the correct letter, or letters, corresponding to each stage.
The first one (feeding) has been done for you.
StageLetterfeedingEnitrificationnitrogen fixationdenitrificationammonification\begin{array}{|l|c|} \hline \textbf{Stage} & \textbf{Letter} \\ \hline \text{feeding} & \text{E} \\ \hline \text{nitrification} & \\ \hline \text{nitrogen fixation} & \\ \hline \text{denitrification} & \\ \hline \text{ammonification} & \\ \hline \end{array}Stagefeedingnitrificationnitrogen fixationdenitrificationammonificationLetterEExplain how nitrate ions are absorbed from the soil into plant roots at stage D.
