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MODEL PAPER 5 — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMODEL PAPER 51 Mark
Question
Assertion (A): An ecosystem consists of biotic components and abiotic components.
Reason (R): Biotic and abiotic components play important roles for the sustenance of life and work independently in all ecosystems.
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Answer

(a) Both A and R are true and R is the correct explanation of A.
Explanation: There are both biotic (living) and abiotic (non-living) elements in an ecosystem. This is accurate because ecosystems consist of both living and non-living elements, including soil, water, air, and other non-living things like animals, plants, and bacteria. Since living things depend on nonliving resources like water, air, and soil nutrients for survival, both biotic and abiotic components are crucial to the maintenance of life. On the other hand, abiotic factors like sunshine and climate also affect how living things are distributed and behave in an ecosystem. The justification, which states that biotic and abiotic elements function separately in every ecosystem, also bolsters the assertion. This is so that life can continue to exist in an ecosystem even while living things and non-living resources do not rely on one another.

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