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JAMB Biology 2000 Question 15

Question 15

Photosynthesis and Plant Nutrition

Use the diagram to answer questions 14 and 15. The gas occupying the space labelled I is

Diagram for this question
  1. A.carbon (IV) oxide
  2. B.nitrogen
  3. C.hydrogen
  4. D.oxygen.
Show the answer and explanation

Answer: D (oxygen.)

Explanation

A water plant in light photosynthesises and releases oxygen, which collects at the top of the tube.