The species confined to a particular region and not found elsewhere is termed as
endemic
rare
keystone
alien
The fast dwindling $....A... $$\;\%$ forest is estimated to produce $....B... $$\;\%$ percent of the total oxygen in earth’s atmosphere.
In which year, Earth Summit held?
Explain as to how protection of biodiversity hot spots alone can reduce up to $30 \%$ of the current rate of species extinction.