Why is India a mega diversity nation?

Match Column I with Column II and choose the correct option:

Match the items of column A with the corresponding items of column B and select the correct choice:

Column A                                                                        Column B

1. Virgin                                                          i. Are purely Indian Vegetation

2. Indigenous species                                    ii. Have come from outside India

3. Exotic species                                            iii. Grown naturally without human aid and left undisturbed by humans for a long time

Following is the data of four species$\left(S_1-S_4\right)$  present $\left(+\right)$ or absent $\left(-\right)$ in five different habitats ($P,Q,R,S$ and $T$). Which species has the maximum diversity?

Variety of organisms existing on the earth, their interrelationships and their relationship with the environment is called