How many biodiversity hot spots have been identified in the world?
$30$
$3$
$34$
$20$
Which one is not the renewable energy of natural resources?
Estuaries are considered as nutrient rich and trap
Wild populations of plants and animals and traditional life styles of tribals are protected in
How do scientists extrapolate the total number of species on Earth ?
Species-area relationships among very large areas like the entire continents the $Z$ values in the range of