(D) ,$H$,and $O$ are considered non-mineral elements because they are obtained from $CO_2$ and $H_2O$ by plants. Carbon $(C)$ is the fundamental backb

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(D) ,$H$,and $O$ are considered non-mineral elements because they are obtained from $CO_2$ and $H_2O$ by plants. Carbon $(C)$ is the fundamental backbone of all organic compounds,yet it is not classified as a mineral element because it is derived from the atmosphere and water rather than from the soil.