Which of the following statements about earth’s cycles is not true? a. earth’s cycles move matter between abiotic and biotic factors of the environment. b. the various cycles found on earth are vital to life. c. some of earth’s cycles are a direct result of human action. d. earth’s cycles convert nonliving elements into forms usable by organisms.

The correct answer would be option C.

Earth's cycle or biogeochemical cycles refer to the cycling of matter between biotic (living organisms such as plants, animals, microbes) and abiotic components (air, water, soil) of the earth.

Examples may include carbon cycle, water cycle, nitrogen cycle et cetera.

These cycles are vital for the very survival of all the living organisms including human beings.

None of the cycles are a direct result of human actions. Instead, human activities disturb the balance of these cycles.  

For example, deforestation disturbs both water and carbon cycle.

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