Problem: Use the diagram of the nitrogen cycle to answer the question. Diagram of a nitrogen cycle. (Imagery supplied by olando o/iStock via Getty) Which claim about how nitrogen moves between sources and sinks in the model is true? Responses Denitrification releases nitrogen in the form of nitrates into the soil to be used by plants. Denitrification releases nitrogen in the form of nitrates into the soil to be used by plants. Animals release nitrogen into the air, which then gets reabsorbed back into the soil. Animals release nitrogen into the air, which then gets reabsorbed back into the soil. Atmospheric nitrogen is removed through fixation and then converted into nitrates. Atmospheric nitrogen is removed through fixation and then converted into nitrates. Ammonia becomes nitrite, which then is released back into the atmosphere. Need Assignment Help?