Which of the following best describes biogeochemical cycles? A. The cycle elements through the biotic in a biotic components of an ecosystem.
B. The cycle elements through the plants and trees of an ecosystem.
C. The cycle elements through the plants and soil of an ecosystem.
D. All of the above

The cycle elements through the biotic in a biotic components of an ecosystem.

Explanation:

a biogeochemical cycle is one of several natural cycles in which preserved matter moves through the biotic and abiotic parts of the ecosystem. Each of these elements is circulated through the biotic components, which are the living parts of the ecosystem, and through the abiotic components, which are non-living components.

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when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.