B) sunlight
Sunlight supports life by providing food and warmth which is needed for the population of practically anything on earth to survive
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Explanation:
nucleic acid is a polymeric macromolecule made up of repeated units of monomeric 'nucleotides' composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
Answer:
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Explanation: