Fishing and Guano birds assist the cycling of
Nitrogen
Phosphorus
Carbon
$N_2$ and carbon both
In lake ecosystem the population rise or its explosion is termed
The organisms which participate most actively in nitrogen cycle in nature are
Some of the stages in the hydrarch are labelled as
$I.$ Marsh meadow stage
$II.$ Reed swamp stage
$III.$ Submerged plant stage
$IV.$ Phytoplankton stage
$V.$ Submerged free floating plant stage
Identify the choice that represents the correct sequence of these stages
Give any two examples of xerarch succession.
Eutrophic lakes means