Ozone hole means
Hole in the stratosphere
Same concentration of ozone
Decrease in concentration of ozone
Increase in the concentration of ozone
It’s obvious.
Large woody vines are more commonly found in
$A$ : Estuary constitutes one of the most productive ecosystem. $R$ : It represents transition zone between two populations of a species.
World environment day is celeberated on
Comment on the following figures : $\rm {I,\,II}$ and $\rm {III}$ : $\rm {A, \,B, \,C, \,D, \,G, \,P, \,Q, \,R,\,S}$ are species
Tetonic is the study of
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