Identify $X, Y$ and $Z$ from the given pie charts representing global biodiversity of invertebrates and vertebrates:

Find the wrongly matched pair.

Which of the following statements are correct about the Amazon rainforest?
$I$. They are called the lungs of the planet.
$II$. They harbour probably millions of species.
$III$. They are the largest tropical rainforest in South America and have the highest biodiversity on Earth.
$IV$. They are being cut and cleared for cultivating soybeans or for conversion to grasslands for raising beef cattle.
Choose the correct option.

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.

What does '$V$' represent in the given figure?

What is true for $X$ in the figure representing the species-area relationship?