The movement of nutrient elements through the various components of an ecosystem is called nutrient ...........

Geography and Environment (PCS) Concept of Ecology

The movement of nutrient elements through the various components of an ecosystem is called nutrient cycling. Consider the following statements regarding the same:

1. The reservoir for gaseous type of nutrient cycle is located in Earth’s crust and for the sedimentary cycle, the reservoir exists in the atmosphere.

2. Unlike carbon cycle, there is no respiratory release of phosphorus into atmosphere.

Which of the above statement/s is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Nutrient Cycle :
The amount of nutrients, such as carbon, nitrogen, phosphorus, calcium, etc., present in the soil at any given time, is referred to as the standing state. It varies in different kinds of ecosystems and also on a seasonal basis.
Nutrients which are never lost from the ecosystems, they are recycled time and again indefinitely.
The movement of nutrient elements through the various components of an ecosystem is called nutrient cycling. Another name of nutrient cycling is biogeochemical cycles (bio: living organism, geo: rocks, air, and water).
Carbon Cycle :
If we look at the total quantity of global carbon, we fi nd that 71 per cent carbon is found dissolved in oceans. This oceanic reservoir regulates the amount of carbon dioxide in the atmosphere.
Fossil fuel also represent a reservoir of carbon. Carbon cycling occurs through atmosphere, ocean and through living and dead organisms.
Phosphorus Cycle :
Phosphorus is a major constituent of biological membranes, nucleic acids and cellular energy transfer systems.
Many animals also need large quantities of this element to make shells, bones and teeth.
The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates