With reference to Nutrient Cycling consider the following statements comparing Carbon cycle and Phos...........

Environment and Ecology Biodiversity

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With reference to Nutrient Cycling, consider the following statements comparing Carbon cycle and Phosphorus Cycle?

1. Atmospheric inputs of phosphorus through rainfall is much greater than carbon inputs.

2. Gaseous exchanges of phosphorus between organism and environment is negligible as compared to carbon.

Which of the statements given above is/are not correct?

1 Only

2 Only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Nutrient Cycles are of two types: (a) gaseous and (b) sedimentary. The reservoir for gaseous type of nutrient cycle (e.g., nitrogen,carbon cycle) exists in the atmosphere and for the sedimentary cycle (e.g., sulphur and phosphorus cycle), the reservoir is located in located in Earth's crust. The function of the reservoir is to meet with the deficit which occurs due to imbalance in the rate of influx and efflux and therein lies the difference between Carbon and Phosphorus Cycle.Unlike carbon cycle, there is no respiratory release of phosphorus into atmosphere. Also, atmospheric inputs of phosphorus through rainfall are much smaller than carbon inputs and Gaseous exchanges of phosphorus between organism and environment are negligible compared to carbon.