Cracks in a rock is considered is chemical weathering.
The vast majority of a tree's carbon comes from the air, which averages 0.03-0.04% by volume (300-400 ppmv) CO2. This is fixed through photosynthesis and eventually stored as glucose which the plant can then use for its metabolism.
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The best answer would be:
<span>Abiotic environment
Hope this helps!
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This questions seems like its missing other parts