Q15 of 67 Page 98

The reservoir for the gaseous type of bio-geo chemical cycle exists in

Nutrients cycle is of two types-


a. Gaseous nutrient cycle- reservoir exists in the atmosphere. E.g. Nitrogen, Carbon.


b. Sedimentary nutrient cycle- reservoir is present in Earths crust.

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13

Among the following bio-geo-chemical cycles which one does not have losses due to respiration?

 14

The sequence of communities of primary succession in water is:

 16

If the carbon atoms fixed by producers already have passed through three species, the trophic level of the last species would be.

 17

Which of the following type of ecosystem is expected in an area where evaporation exceeds precipitation, and mean annual rainfall is below 100mm