WAEC Biology 2018 Theory — Question 6
Question 6 of 19 from the West African Examinations Council (WAEC) Biology 2018 Theory paper, with the correct answer and a full explanation.
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2.(b) State one role each of the gases named in 2(a).
Model answer
CO₂ is used as one of the raw materials for photosynthesis. O₂ is given off as a waste product of photosynthesis.
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