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What contributes the most to the mass of a plant? i. soil ii. oxygen iii. carbon dioxide iv. water
a.i only
b.ii only
c.i and iii only eliminate
d.iii and iv only

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MissPhiladelphia
I think the correct answer from the choices listed above is option D. It would be carbon dioxide and water that contributes the most to the mass of a plant. These substances are what the plant needs to carry out photosynthesis with the presence of sunlight. Hope this answers the question.
The correct answer is D. III and IV only.

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