Vertical distribution of different species occupying different levels is called:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Stratification
The ecosystem has a physical structure made by the interaction of its living and non-living parts. Stratification is the vertical distribution of different species occupying different levels. In a forest, trees occupy the top layer, shrubs the second, and herbs and grasses the bottom layer.
(1) Stratification — Correct. It is this vertical layering.
(2) Humification — Incorrect. It is a step in decomposition. It is the formation of humus, a dark, slowly decaying material.
(3) Mineralisation — Incorrect. It is the slow breakdown of humus by microbes, which releases inorganic nutrients into the soil.
(4) Decomposition — Incorrect. It is the breakdown of dead plant and animal remains into simpler inorganic substances. It has nothing to do with layers.
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NCERT Extract:
Ecosystem – Structure and Function – …
