66. What is a biogeochemical cycle? What is the role of the reservoir in a biogeochemical cycle? Give an example of a sedimentary cycle with the reservoir located in earth’s crust.
66. What is a biogeochemical cycle? What is the role of the reservoir in a biogeochemical cycle? Give an example of a sedimentary cycle with the reservoir located in earth’s crust.

Solution – The cyclic movement of nutrients from  reservoirs to the plants and then back to the reservoir is called a biogeochemical cycle. This provides sufficient amount of nutrients to meet the deficit caused in the ecosystem due to influx and efflux. An example of the sedimentary cycle is Phosphorus cycle