The primary difference between sedimentary and atmospheric cycles is that in _____ cycles the nutrients do not _____.

Two types of nutrient cycles are – gaseous cycles (nitrogen, oxygen, carbon cycles) and sedimentary cycles (phosphorus, sulphur cycles). In gaseous cycle, the main reservoirs of chemicals are the atmosphere and ocean. In sedimentary cycles, the main reservoirs are soils and rocks. In sedimentary cycles the nutrients do not enter the atmosphere.