WAEC Biology 1998 Question 33

Question 33

Nutrient Cycling

Which of the following processes removes CO2 from the atmosphere?

  1. A.Respiration
  2. B.Photosynthesis
  3. C.Transpiration
  4. D.Excretion
  5. E.Combustion
Show the answer and explanation

Answer: B (Photosynthesis)

Explanation

Green plants take in carbon dioxide and use it to make sugar in photosynthesis; respiration and combustion release it.