The 'Reed-swamp' stage refers to which of the | vedclass

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(B) In the process of hydrarch succession,the 'Reed-swamp' stage is characterized by the presence of plants like $Phragmites$ (reeds) and $Typha$. The

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$A$ successional stage showing a mixture of both terrestrial and aquatic conditions.

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(B) In the process of hydrarch succession,the 'Reed-swamp' stage is characterized by the presence of plants like $Phragmites$ (reeds) and $Typha$. These plants have extensive rhizomes that form a dense mat,which helps in trapping sediments and building up the soil. This stage represents a transition where the water level becomes very shallow,and the environment shows a mixture of both aquatic and terrestrial conditions,eventually leading to the marsh-meadow stage.

Column-$I$	Column-$II$
$(i)$ Ecosystem	$(P)$ Bacteria,Fungi
$(ii)$ Food chain	$(Q)$ Nutrient cycling
$(iii)$ Birds	$(R)$ Primary consumer
$(iv)$ Decomposers	$(S)$ Deer

The 'Reed-swamp' stage refers to which of the following?

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In the dry weight of living beings,$A$ $\%$ carbon is present. In the oceans,$B$ $\%$ of the total global carbon is dissolved. The total amount of carbon in the atmosphere is $C$ $\%$ of the total global carbon. Identify the correct values for $A, B,$ and $C$.

Match the following columns:

Column-$I$ Column-$II$

$(i)$ Ecosystem $(P)$ Bacteria,Fungi

$(ii)$ Food chain $(Q)$ Nutrient cycling

$(iii)$ Birds $(R)$ Primary consumer

$(iv)$ Decomposers $(S)$ Deer

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