95. Consider the following:
1. Photosynthesis
2. Respiration
3. Decay of organic matter
4. Volcanic action
Which of the above add carbon dioxide to the carbon cycle on Earth?

Only 1 and 4

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Only 2 and 3

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Only 2, 3 and 4

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All of the above

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Solution

The correct option is C Only 2, 3 and 4
Photosynthesis is a process used by plants to convert light energy from Sun into chemical energy which can be used as energy for organisms. Such energy is stored in carbohydrate molecules which are synthesized from carbon dioxide and water. In photosynthesis, carbon dioxide is removed from air to make plant food from carbon, with this statement 4 is incorrect.

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Similar questions

Q. 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.

Select True or False in the following statements regarding photosynthesis and respiration.

1. Photosynthesis occurs only in the presence of chlorophyll.
2. Photosynthesis occurs at all time.
3. Respiration uses carbon dioxide and water.
4. In respiration carbon dioxide is released as end product.

Carbon Dioxide is added to the atmosphere by the decay of organic matter.

Q. Consider the following chemical reactions which take place in different organisms/tissues under various conditions:
(i) Glucose

\overset{Respiration}{\to}

Ethanol + Carbon dioxide + Energy
(ii) Glucose

\overset{Respiration}{\to}

Carbon dioxide + Water + Energy
(iii) Glucose

\overset{Respiration}{\to}

Lactic acid + Energy
(a) Name one organism which respires according to equation (i) above.
(b) Name one organism which respires according to equation (ii) above.
(c) When and where does respiration represented by equation (iii) above take place?
(d) Which equation/equations represent aerobic respiration?
(e) Which equation/equations represent anaerobic respiration?
(f) Which of the above reactions produces the maximum amount of energy?

Essential steps in the carbon cycle are Photosynthesis, Food chains, Respiration, Decay and Combustion.

True or False?

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95. Consider the following: 1. Photosynthesis 2. Respiration 3. Decay of organic matter 4. Volcanic action Which of the above add carbon dioxide to the carbon cycle on Earth?

95. Consider the following:
1. Photosynthesis
2. Respiration
3. Decay of organic matter
4. Volcanic action
Which of the above add carbon dioxide to the carbon cycle on Earth?