11). The thickness of biosphere is
| A). 8-10 km above the earth's surface |
| B). 5-8 km above the earth's surface |
| C). 5-10 km above the earth's surface |
| D). 10-12 km above the earth's surface |
|
12). The soil found in areas of heavy rainfall and high humidity, where there is good growth of vegetation is
| A). peat and marshy soil |
| B). saline and alkaline soil |
| C). black soil |
| D). alluvial soil |
|
13). The tide produced when the moon and the sun are at right angles to the earth, thus pulling in opposite directions, is called
| A). neap tide |
| B). spring tide |
| C). diurnal tide |
| D). ebb tide |
|
14). The soils whose parent material tend to be rich in sand are
| A). spodsols |
| B). alfisols |
| C). aridsols |
| D). ultisols |
|
15). The south temperature zone is a region lying between
| A). the Tropic of Capricorn and the Antarctic circle |
| B). the Antarctic circle and the South pole |
| C). the Tropic of Cancer and the tropic of Capricorn |
| D). the Tropic of Capricorn and the equator |
|
16). The type of soil needed for rice is
| A). clayey loam |
| B). rich , muddy and saturated with water |
| C). deep, loamy, well drained |
| D). humus, rich in Fe and potash |
|
17). The study of day-to-day variations in weather called is called
| A). climatology |
| B). meteorology |
| C). cyclogenesis |
| D). None of the above |
|
18). The snow line of the Rocky Mountains of the USA is about
| A). 3 km above sea level |
| B). 6 km above sea level |
| C). it is at the sea level |
| D). None of the above |
|
19). The study of human geography includes study of
| A). human society and culture |
| B). behaviour and urban systems |
| C). economics and politics |
| D). All of the above |
|
20). The shallow seas found in the Atlantic basin include the
| A). Caribbean sea and Mediterranean |
| B). Baltic and Arctic seas |
| C). Gulf of Mexico |
| D). All of the above |
|
