Cotton Gin MCQ (Multiple Choice Questions) PDF - 162

MCQ 806: Screw was invented in 3^rd century B.C by

1. Archimedes
2. Magellan
3. Alexander
4. Franklin

MCQ 807: World's coldest continent Antarctica is surrounded by

1. Western Ocean
2. Southern Ocean
3. Northern Ocean
4. Eastern Ocean

MCQ 808: Second most abundant constituent of dry air in terms of volume after nitrogen is

1. nitrogen
2. oxygen
3. carbon dioxide
4. helium

MCQ 809: Headquarter of World Tourism Organization is situated in

1. Switzerland
2. Greece
3. Italy
4. Spain

MCQ 810: German scientist, Fritz Haber, died in

1. 1932
2. 1934
3. 1936
4. 1937