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Plants absorb dissolved nitrates from soil and convert them into

  • A.Free nitrogen
  • B.Urea
  • C.Ammonia
  • D.Proteins

Answer: D

Plants convert the nitrates they absorb into proteins.

The nitrate is reduced to ammonium, combined with carbon skeletons from photosynthesis to make amino acids, and the amino acids are linked into proteins. This is how nitrogen enters the food chain for every animal.

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