Which gas was commonly used in airships?
A) Nitrogen B) Helium ✓ C) Hydrogen D) Hydrogen sulphide
A) Nitrogen B) Helium ✓ C) Hydrogen D) Hydrogen sulphide
A) 2 B) 4 ✓ C) 6 D) 8
A) 1956 B) 1957 C) 1958 ✓ D) 1959
A) Italy ✓ B) France C) Spain D) Germany
A) Canada ✓ B) China C) USA D) France
A) Iran B) Russia C) Afghanistan ✓ D) Pakistan
A) Chakwal B) Attock C) Jehlum ✓ D) Rawalpindi
A) Multan B) Sahiwal C) Gujranwala ✓ D) Gujraat
A) India B) Germany C) Pakistan ✓ D) Belgium
A) Mt Everest B) k-2 C) Tirch Mirr D) Nanga Parbat ✓