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What is the amount of average price tag ...

What is the amount of average price tag on nature's life support services determined by Robert Constanza and his colegues?

A

US `$` 3 trillion a year

B

US `$` 13 trillion a year

C

US `$` 23 trillion a year

D

US `$` 33 trillion a year

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Verified by Experts

The correct Answer is:
D
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NCERT FINGERTIPS-ECOSYSTEM-Ecosystem
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  7. The graph given below shows the variations in the population of produc...

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  9. Decomposers like fungi and bacteria are

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  10. The process of mineralisation by microorganisms helps in the relase of

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  11. Productivity is the rate of production of biomass expressed in terms o...

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  12. An inverted pyramid of biomass can be found in which ecosystem?

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  13. Which of the pyramid of biomass can be found in which ecosystem?

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  14. Which of the following ecosystems is most productive in terms of net p...

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  17. Among the following where do you think the process of decomposition wo...

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  18. How much of the net primary productivity of a terrestrial ecosystem is...

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