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Question

Choose the correct sequences.
  1. CO2 in atmosphere decomposers organic carbon in animals organic carbon in plants.
  2. CO2 in atmosphere organic carbon in plants organic carbon in animals inorganic carbon in soil.
  3. Inorganic carbonates in water organic carbon in plants organic carbon in animals scavengers.
  4. Organic carbon in animals decomposers CO2 in atmosphere organic carbon in plants.

A
Inorganic carbonates in water organic carbon in plants organic carbon in animals scavengers.
B
Organic carbon in animals decomposers CO2 in atmosphere organic carbon in plants.
C
CO2 in atmosphere decomposers organic carbon in animals organic carbon in plants.
D
CO2 in atmosphere organic carbon in plants organic carbon in animals inorganic carbon in soil.
Solution
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Nutrient cycles circulate matter through the biosphere. The nutrients regularly alternate between living (biotic) and nonliving (abiotic) components. Hence the nutrient cycles are also called as biogeochemical cycles. The important nutrient cycles are water cycle, carbon cycle, nitrogen cycle, mineral cycle. In the carbon cycle, atmospheric carbon is fixed into organic compounds like carbohydrates by green plants during the process of photosynthesis. The organic compounds are consumed by heterotrophic organisms like animals. The waste materials of animals and dead bodies of animals and plants are acted upon by detrivorous organisms, releasing the mineral nutrients like carbon, nitrogen, sulphur etc back to the environment.

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Similar Questions
Q1

Question 19
Choose the correct sequences


(a) CO2 in atmosphere → decomposers → organic carbon in animals → organic carbon in plants
(b) CO2 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 → CO2 in atmosphere → organic carbon in plants

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Q2
Choose the correct sequence of events in Carbon Cycle.
(a) CO2 in atmosphere → decomposers → organic carbon in animals → organic carbon in plants
(b) CO2 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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Q3
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?

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Q4
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

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Q5
Assertion :Oxides and carbonates of carbon considered to be inorganic compounds. Reason: Inorganic carbon is carbon extracted from ores and minerals, as opposed to organic carbon found in nature through plants and living things.
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