In the following pie chart of global invertebrate diversity, what does $A$ and $B$ represent?
$A$ -Molluscs, $B$ -Crustaceans
$A$ -Insects, $B$ -Molluscs
$A $ -Crustaceans, $B$ -Molluscs
$A$ -Molluscs, $B$ -Insects
Which of the following is considered a hotspot of biodiversity in India ?
Definitions / Explanation: $\boldsymbol{\gamma}$ - diversity
One of endangered species of Indian medicinal plants is that of
Match the column $I$ with column $II$
Column $I$ | Column $II$ |
$(a)$. Thylacine | $(i)$ Russia |
$(b)$. Dodo | $(ii)$ Mauritius |
$(c)$. Quagga | $(iii)$ Australia |
$(d)$. Steller’s sea cow | $(iv)$ Africa |
How many species in the world are facing the threat of extinction?