The species confined to a particular region and not found elsewhere is termed as

Define the following terms:
$1$. Biodiversity
$2$. Species diversity

Where is the highest genetic diversity in agricultural crops found?

In India,temperate evergreen forests are found in .......

$X$ - India has $2.4\%$ of the world's land area.
$Y$ - The diversity of plants and animals is not uniform throughout the world but shows a rather uneven distribution.
$Z$ - Species-area relationships were given by Alexander von Humboldt.
Identify the truth value of $X, Y,$ and $Z$ respectively.

What distinguishes India from Scandinavian countries in terms of biodiversity?