Invertebrates constitute what percentage of the animal kingdom (in $\%$)?

Where are the Cardamom Hills located?

What is the full form of $UNESCO$?

According to the representation of global biodiversity proportions for the number of species of major taxa of vertebrates,select the appropriate option for the labels $X$,$Y$,and $Z$ in the given figure.

In global biodiversity of plants,which of the following statements is correct?

$A$ strict protection of biodiversity hotspots could reduce the ongoing mass extinction by almost (in $\%$)