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Q: Which of the following is/are Abiotic components? I. Rocks II. Plants III. Soil
  • A. Only I
  • B. Only II
  • C. Both I and III
  • D. All I, II and III
Correct Answer: Option C - Every ecosystem has two components, namely, biotic components and abiotic components. Biotic components refer to all living organisms in an ecology while abiotic refers to the non-living things. Plants, animals and micro organisms etc are biotic components while, sunlight, water, salinity, pH of water, climate, altitude, temperature etc are abiotic components. So, plants are biotic components while rocks and soil are abiotic components.
C. Every ecosystem has two components, namely, biotic components and abiotic components. Biotic components refer to all living organisms in an ecology while abiotic refers to the non-living things. Plants, animals and micro organisms etc are biotic components while, sunlight, water, salinity, pH of water, climate, altitude, temperature etc are abiotic components. So, plants are biotic components while rocks and soil are abiotic components.

Explanations:

Every ecosystem has two components, namely, biotic components and abiotic components. Biotic components refer to all living organisms in an ecology while abiotic refers to the non-living things. Plants, animals and micro organisms etc are biotic components while, sunlight, water, salinity, pH of water, climate, altitude, temperature etc are abiotic components. So, plants are biotic components while rocks and soil are abiotic components.