Option (ii) is correct because the biogeochemical cycle is defined as the cyclic movement of matter and energy between the abiotic (non-living) and biotic (living) components of the Earth. This process ensures that essential nutrients, such as carbon, nitrogen, and oxygen, are recycled and remain available to support life. Option (i) is incorrect as biogeochemical cycles do not directly provide food. Option (iii) is incorrect because elements are not created in these cycles; they are recycled. Option (iv) is incorrect as the removal of pollutants is not the primary role of these cycles.