| List - I | List - II | ||
| (A) | Lungs | (I) | Birds |
| (B) | Gills | (II) | Insects centipedes |
| (C) | Trachea | (III) | Fish |
| (D) | Airsacs | (IV) | Mammals |
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. that maintaining a positive attitude
Q. even in difficult situations
R. is essential for success
S. and helps overcome obstacles effectively