Which one is the correct sequence of events in the Carbon Cycle?
(a) $C O_{2}$ in atmosphere → decomposers → organic carbon in animals → organic carbon in plants
(b) $C O_{2}$ in atmosphere → organic carbon in plants → organic carbon in animals → inorganic carbon in soil
(c) Inorganic carbonates in water → organic carbon in plants → organic carbon in animals → scavengers
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Solution

(b) $C O_{2}$ in atmosphere → organic carbon in plants → organic carbon in animals → inorganic carbon in the soil.
[1 Mark]

The steps involved in carbon cycle:

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Question 19
Choose the correct sequences

(a) $C O_{2}$ in atmosphere → decomposers → organic carbon in animals → organic carbon in plants
(b) $C O_{2}$ in atmosphere → organic carbon in plants → organic carbon in animals → inorganic carbon in soil
(c) Inorganic carbonates in water → organic carbon in plants → organic carbon in animals → scavengers
(d) Organic carbon in animals → decomposers → $C O_{2}$ in atmosphere → organic carbon in plants

Q. In carbon cycle processes, carbon is used by plants to form organic molecules but most carbon is found in the atmosphere as carbon dioxide.
Which process is most responsible for removing carbon dioxide from the atmosphere?

Q. Carbon is found in all organic material. It is used by plants to form organic molecules but most carbon is found in the atmosphere as carbon dioxide. Which of the following processes releases carbon dioxide back into the atmosphere?
I. Decomposition
II. Respiration
Ill. Combustion

Q. Decaying of organic matter replishes the carbon dioxide in the atmosphere.

Q. Assertion :In spite of the production of the carbon dioxide by combustion of fuels and oxidation of organic foods, the percentage of carbon dioxide in our atmosphere is a mere fraction of a per cent (very less). Reason: Green plants convert carbon dioxide into glucose in the presence of
sunlight.

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(b) CO2 in atmosphere → organic carbon in plants → organic carbon in animals → inorganic carbon in the soil. [1 Mark] The steps involved in carbon cycle: [1 Mark]

(b) $C O_{2}$ in atmosphere → organic carbon in plants → organic carbon in animals → inorganic carbon in the soil.
[1 Mark]

The steps involved in carbon cycle:

[1 Mark]