Answer: A nutrient cycle is when the substances of an ecosystem are recycled, moving through biotic and abiotic compartments. They are important because they regulate the elements needed for the physical and biological aspects of our planet.
Step-by-step explanation: Ah, nutrient cycles, what a fun topic to learn! Also known as biogeochemical cycles in some textbooks, you might have probably heard of the water cycle, and also learned about the carbon, phosphorus, sulfur, and oxygen cycles. These cycles are natural in our world and happen because in our planet, nature recycles matter. These cycles allow for all elements of nature to be regulated, no matter what they are. The only bad thing though, these cycles have been recently interrupted by human activity.