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Natural reservoir of phosphorus is:...

Natural reservoir of phosphorus is:

A

Animal bones

B

Rock

C

Fossils

D

Sea water

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The correct Answer is:
B
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Given below is a phosphorus cycle. Select the incorrect statements from the following: (i) It represents phosphorus cyclic in an aquatic ecosystem. (ii) It represents phosphorus cyclic in a terrestrial ecosystem. (iii) The natural reservoir of phosphorus is forest ecosystem. (iii) The natural reservoir of phosphorus is forest rocks. (iv) There is a respiratory release of phosphorus into the atmosphere. (v) Gaseous exchange of phosphorus between organisms and the environment does not occur.

Study the given flow chart and select the correct statement regarding this. (i) It represents phosphorus cycling in a terrestrial ecosystem. (ii) It represents phosphorus cycling in an aquatic ecosystem. (iii) Natural resenvoir of phosphorus is phosphate rocks. (iv) There is no repiratory release of phosphorus into atmosphere. (v) Gaseous exchange of phosphorus between organisms and enviornment occurs to a considereable extent.

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AAKASH INSTITUTE-ECOSYSTEM-Assignment (Section C)
  1. Given below is a simplified model of phosphorus cycling in a terrestri...

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  2. If 20 J of energy is trapped at producer level, then how much energy w...

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  3. Natural reservoir of phosphorus is:

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  4. Secondary productivity is rate of formation of new organic matter by:

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  5. Which one of the following processes during decomposition is correctly...

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  6. Which one of the following is not a functional unit of an ecosystem

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  7. The upright pyramid of number is absent in

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  8. Which one of the following is not a gaseous biogeochemical cycle in ec...

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  9. Given below is an imaginary pyramid of numbers. What could be one of t...

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  10. Identify the possible link ''A'' in the following food chain : Plant r...

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  11. The rate of formation of new organic matter by rabbit in a grassland, ...

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  12. The second stage of hydrosere is occupied by plants like

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  13. Identify the likely organisms (a), (b), (c) and (d) in the food web sh...

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  14. Mass of living matter at a trophic level in an area at any time is cal...

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  15. Which one of the following statements is correct for secondary success...

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  16. Which one of the following statements for pyramid of energy is incorre...

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  17. Which one of the following animals may occupy more than one trophic le...

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  18. Both, hydrarch and xerarch successions lead to

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  19. Of the total incident solar radiation the proportion of PAR is:

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  20. The breakdown of detritus into smaller particles by earthworm is a pro...

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