Consider the following pairs:
| S.No | Terms | Meaning |
| 1. | Normal Species | Species whose population levels are considered to be normal for their survival |
| 2. | Endemic Species | These are species which are in danger of extinction. |
| 3. | Vulnerable Species | It is likely to move into the endangered category in the near future. |
| 4. | Extinct Species | Only found in some particular areas usually isolated by natural or geographical barriers. |
How many above pair is/are correctly matched?
1
Only one pair
2
Only two pairs
3
Only three pairs
4
All four pairs