Match the category in Column-$I$ with their description in Column-$II$.

Column-$I$	Column-$II$
$i$. Extinct	$a$. Decline in species population from $50\%$ to $70\%$ over last $10$ years.
$ii$. Endangered	$b$. Species that are abundant.
$iii$. Vulnerable	$c$. Species of which its last individual has died.
$iv$. Least concern	$d$. Decline in species population from $30\%$ to $50\%$ over last $10$ years.

In the given pie chart representing the global biodiversity of plants,what do '$P$' and '$Q$' represent respectively?

Match List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. The Evil Quartet	$I$. Cryopreservation
$B$. Ex situ conservation	$II$. Alien species invasion
$C$. Lantana camara	$III$. Causes of biodiversity losses
$D$. Dodo	$IV$. Extinction

Choose the option with all correct matches:

Read the following statements:
$I.$ Species diversity increases as we move away from the equator towards the poles.
$II.$ Stellar's sea cow and passenger pigeon got extinct due to overexploitation by man.
$III.$ Lantana and Eichhornia are invasive weed in India.
$IV.$ The historic convention on biological diversity was held in $1992.$
Choose the option containing correct statements.

Which of the following statement$(s)$ is/are correct?
$(i)$ Rich biodiversity is not essential for ecosystem health.
$(ii)$ The current rate of species extinction is $100$ to $1000$ times faster than the pre-human extinction rate.
$(iii)$ Steller's sea cow became extinct due to overexploitation by humans.
$(iv)$ Even if we combine all biodiversity hotspots,they cover less than $2 \%$ of the Earth's land area.
$(v)$ The rate of mass extinction can be completely reduced by strict protection of hotspots.

Which of the following pairs of an animal and a plant represents endangered organisms in India?