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Which of the following processes removes carbon from the atmosphere?

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Which of the following processes removes carbon from the atmosphere?

A. Putrefaction

B. Photosynthesis

C. volcanic eruption

D. Burning fuels




Carbon is not mostly found alone in the atmosphere; it is found in molecular combination with oxygen as carbon dioxide. To understand clearly the question, we are required to identify the process that removes, rather than release carbon dioxide into the atmosphere.

To the right option…

  1. Option A is very incorrect; putrefaction is simply the process of decay; when a living organism dies, its body begins to decompose, this decomposition is called putrefaction. Now during decay carbon dioxide and water molecules is usually liberated into the atmosphere. So, putrefaction adds carbon to the atmosphere.
  2. Option B is very correct; during photosynthesis, water and carbon dioxide mixes with sunlight energy to produce glucose and oxygen. Therefore, photosynthesis removes carbon dioxide from the atmosphere.
  3. During volcanic eruption, massive fumes containing oxides of carbon are released into the atmosphere. C is incorrect
  4. Actually, D is also incorrect; burning of fuels is perhaps the biggest contributor of carbon in its oxide form, as well as soot, to the atmosphere.
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You may please note that

  • Photosynthesis removes carbon in its oxide form from the atmosphere and adds oxygen to it.

You may use the questions and answers session to deal further on this topic…

/culled from 2018 JAMB-UTME biology question 21 /

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