WBCS.LIVE practice question

Which of the following adds/add carbon dioxide to the carbon cycle on the planet Earth? 1. Volcanic action 2. Respiration 3. Photosynthesis 4. Decay of organic matter Select the correct answer using the code given below.

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 1 and 3 only
  2. 2 only
  3. 1, 2 and 4 only
  4. 1, 2, 3 and 4

Correct answer and explanation

Correct answer: 1, 2 and 4 only