With reference to semi-arid grasslands, consider the following pairs
| S.No. | Regions | Grasslands |
| 1. | Argentina | Downs |
| 2. | South Africa | Velds |
| 3. | North America | Prairies |
| 4. | Australia | Pampas |
How many pairs given above are correctly matched?
1
Only one pair
2
Only two pairs
3
Only three Pairs
4
All four pairs