Teacher:Oxygen is must for Breathing . It was disc
Teacher:Oxygen is must for Breathing . It was discovered in 1773.
Sardar:Thank God I was born after that .
Pehla Paida hota to mar hi jata .
Teacher:Oxygen is must for Breathing . It was discovered in 1773.
Sardar:Thank God I was born after that .
Pehla Paida hota to mar hi jata .