cellular respiration Earth fossil fuels the atmosphere photosynthesis living organisms rocks reservoirs 1. In a biogeochemical cycle, a chemical element spends time in different places, called 2. As a chemical element moves through a biogeochemical cycle, it moves between "bio" and "geo." The "bio" in biogeochemical refers to biotic reservoirs, or 3. The "geo" in biogeochemical refers to chemical element can be found. --specifically, to the abiotic reservoirs where a 4. In the terrestrial carbon cycle, the abiotic reservoir from which living organisms directly obtain their carbon is 5. Carbon moves from an abiotic reservoir to living organisms during the process of 6. Carbon moves from living organisms to an abiotic reservoir during the process of
Nutrient Cycle
The chemical nutrients that are essential for the synthesis of living matter are taken from the physical environment. After the death and decomposition of living organisms, they are returned to the environment to be used over and again. This cyclic back and forth regenerative movement of chemical elements between organisms and their physical environment is known as the biogeochemical cycle or nutrient cycle. Since these elements serve as the essential chemical nutrients of organisms, their cyclic movements are also called nutrient cycling or mineral cycling. Minerals are not uniformly distributed all over the ecosystems but are more concentrated in specific compartments, called pools. The major biogeochemical cycles include the water cycle, nitrogen cycle, carbon cycle, phosphorus cycle, calcium cycle, sulfur cycle, etc.
Biosphere
The geologist Eduard Sues coined the term biosphere. The biosphere is characterized as a part of the earth, which includes ground and air. Moreover, the organisms on earth live in the biosphere. The biosphere is a confined area on the earth's surface where water, soil, and air combine to promote life. Several different types of life exist here.
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