Percentage of Photosynthetically Active Radiation (PAR) that is captured by plants in synthesis of organic matter is
$50-80\; \%$
$40-60 \;\%$
$70-100\; \%$
$2-10\; \%$
Robert Constanza and his colleagues have put an average price tag....... for ecosystem services
Arrange the following as observed in vertical stratification of a forest : Grass, Shrubby plants, Teak, Amaranths.
Extreme xerophytic condition is shown by
Plant successions occurring in a sandy area is
Carbon is available to crop plants in the form of