Which one of the following contains very low concentrations of dissolved inorganic nutrients for algal growth
Oligotrophic lake
Eutrophic lake
Mesotrophic lake
Both eutrophic and mesotrophic lakes
Nitrogen is a critical element of the ecosystem because it is
The forest that colours in autumn is
The pioneer species in a hydrarch succession are :
Robert Constanza and his colleagues have put an average price tag....... for ecosystem services
The first biosphere reserve established in India for conserving the gene pool of flora and fauna and the life style of tribals is