61). The shortest air route from Perth to London is
| A). Perth-Bombay-Rome-London |
| B). Perth-Ankara-Paris-London |
| C). Perth-Aden-Paris-London |
| D). Perth-Mombasa-Rome-London |
|
62). Which one of the following crops enriches the nitrogen content in soil?
| A). Potato |
| B). Sorghum . |
| C). Sunflower |
| D). Pea |
|
63). Which one of the following regions of Asia is experiencing the highest annual growth rate of population?
| A). South Asia |
| B). South-East Asia |
| C). Central Asia |
| D). West Asia |
|
64). Farm land tends to erode most rapidly when planted with-
| A). Sorghum |
| B). Potato . |
| C). Wheat |
| D). Clover |
|
65). When it is noon along \( 82 ^{\circ} \) 30 E longitude, along what degree of longitude it will be 6.30 a.m.?
| A). along \( 165 ^{\circ} \) E |
| B). along \( 67 ^{\circ} \) 30 W |
| C). \( 0 ^{\circ} \) E or W |
| D). along \( 82 ^{\circ} \) 30 W |
|
66). The average elevation of Tibetan Plateau above sea level is:
| A). 2 km |
| B). 3 km |
| C). 4 km |
| D). 5 km |
|
67). Consider the map given below
The map shows the sea voyage route followed by
| A). Thomas Cook |
| B). Ferdinand Magellan |
| C). John Cabot |
| D). Vasco-da-gama |
|
68). The ideal climatic conditions for the cultivations of rice are
| A). rainfall above 100 cm, temperature above \( 25 ^{\circ} C \). |
| B). cool and moist climate for the entire crop period |
| C). rainfall below 100 cm, temperature below \( 25 ^{\circ} C \) |
| D). warm and dry climate during the entire crop period |
|
69). The time taken by the Sun to revolve around the Centre of out galaxy is:
| A). 25 million years |
| B). 100 million years |
| C). 250 million years |
| D). 500 million years |
|
70). The first bird is believed to have appeared on the surface of the earth:
| A). 300 million year ago |
| B). 200 million year ago |
| C). 150 million year ago |
| D). 100 million year ago |
|
