Question

The decomposers in an ecosystem
(a) convert inorganic material, to simpler forms
(b) convert organic material to inorganic forms
(c) convert inorganic materials into organic compounds
(d) do not breakdown organic compounds

NCERT Class X
Science - Exemplar Problems

Chapter_Our Environment

Answer 1

(b) Converet organic material to inorganic forms.
 they convert all organic matter into carbon dioxide.

Answer 2

The ‘decomposers’ in an ecosystem it convert ‘organic material to inorganic forms’.

Option: (b)

Explanation:  

• Here the organic material consists of the dead and the decaying organic and animals. Organic compound consists of oxygen, nitrogen and carbon primarily.  

• The decomposer like earthworm feed on these and change them into ‘inorganic forms’.

• These inorganic nitrogen can further be taken up by the plants and the carbon constitutes a part of carbon cycle.  

• The decomposer help in cycling of the nutrient in the ecosystem. The inorganic forms are easily taken up than the organic forms.

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