Question

Q. Which of the following processes is responsible for the release of carbon dioxide into the atmosphere?

Select the correct answer using the code given below:

• A. 1 only
• B. 2 and 3 only
• C. 1 and 3 only
• D. 1, 2 and 3

Answer 1

The correct option is C 1 and 3 only

Explanation:

• Respiration is carried out by all living organisms. It is a metabolic process where food is oxidized to liberate energy, CO2, and water.
• Green plants in the presence of sunlight utilize CO2 in the process of photosynthesis and convert the inorganic carbon into organic matter (food) and release oxygen.
• The dead organic matter is decomposed by microorganisms and CO2 is released into the atmosphere by decomposers.