What are the differences between flow of matter and of energy in an ecosystem?

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Solution

Flow of matter Flow of energy

(i) It involves the circulation and recycling of nutrients in a cyclic manner within the biosphere. (i) It involves the flow of energy from one trophic level to another in a unidirectional or non-cyclic manner.

(ii) There is no dissipation of matter at any level. (ii) There is the dissipation of energy at every level.

(iii) Biosphere is the source of nutrients. (iii) The Sun is the most important source of energy.

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Give Scientific reasons.

1. Plants in an ecosystem are called producers.

2. The flow of energy in an ecosystem is unidirectional.

3. The flow of nutrients in an ecosystem is cyclic.

4. Decomposers are crucial biotic factors in any ecosystem.

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Flow of matter	Flow of energy
(i) It involves the circulation and recycling of nutrients in a cyclic manner within the biosphere.	(i) It involves the flow of energy from one trophic level to another in a unidirectional or non-cyclic manner.
(ii) There is no dissipation of matter at any level.	(ii) There is the dissipation of energy at every level.
(iii) Biosphere is the source of nutrients.	(iii) The Sun is the most important source of energy.