The main objective of plant conservation is ..........

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.

Match the columns:

Column-$I$	Column-$II$
$(i)$ Nile perch in Lake Victoria	$(i)$ Obvious reasons for habitat destruction
$(ii)$ Narrowly utilitarian	$(ii)$ Habitat destruction
$(iii)$ Main cause for biodiversity loss	$(iii)$ High endemism
$(iv)$ Hotspot	$(iv)$ Alien species

Categorize the following ecosystem services into the appropriate groups: Broadly Utilitarian vs. Narrowly Utilitarian.
$I-$ Industrial products
$II-$ Dyes
$III-$ Construction materials
$IV-$ Pollination
$V-$ Watching spring flowers in full bloom
$VI-$ Watching a bulbul bird in the morning
$VII-$ Lubricants
$VIII-$ Food
Select the correct sequence for (Narrowly Utilitarian,Broadly Utilitarian).

Which of the following statements are correct?

Match List $I$ with List $II$:

List $I$	List $II$
$A$. Robert May	$I$. Species-Area relationship
$B$. Alexander von Humboldt	$II$. Long term ecosystem experiment using outdoor plots
$C$. Paul Ehrlich	$III$. Global species diversity at about $7$ million
$D$. David Tilman	$IV$. Rivet popper hypothesis

Choose the correct answer from the options given below: