31). The mapping of which of the following is most difficult?
A). Mountains |
B). Plateaus and Plains |
C). Interior of the Earth |
D). Oceans and their depth |
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32). Tides in the sea have stored in them :
A). hydraulic energy |
B). kinetic energy |
C). gravitational potential energy |
D). a combination of all the above three forms of energy |
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33). In the earliest days when life originated on earth, the atmosphere contained :
A). free oxygen |
B). no oxygen |
C). oxygen in fixed form |
D). oxygen bound to carbon |
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34). Which one of the following would have occurred if the earth had NOT been inclined on its own axis?
A). All the seasons would have been of same duration |
B). The seasons would not have changed |
C). The summers would have been of longer duration |
D). The winters would have been of longer duration |
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35). Latitude of place is indicative of its :
A). time |
B). altitude |
C). amount of rainfall |
D). temperature |
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36). The upper part of the mantle upon which the crust of the Earth floats is called :
A). bar sphere |
B). mesosphere |
C). mohorovic discontinuity |
D). asthenosphere |
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37). Tides are complied and they vary from place to place because lf :
A). The movement of Moon in relation to Earth |
B). Uneven distribution of water over the globe |
C). Irregularities in the configuration of oceans |
D). all of the above |
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38). Which of the following phenomenon is/are the effect of the rotation of the Earth? 1. Apparent movement of the Sun, the Moon and the Stars. 2. Flatness of the poles and bulge at the Equator. 3. Occurrence of sunrise, noon and sunset. 4. Magnetic field of the earth.
A). 1 and 3 |
B). 2 and 3 |
C). 1, 2 and 3 |
D). 1, 2, 3 and 4 |
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39). Assume that the moon takes exactly 30 days to complete the cycle and also assume that it rises in the east exactly at 6.48 p.m., on the first day. On the fourth day, at what time will it rise?
A). 8.24 p.m |
B). 9.12 p.m |
C). 10.00 p.m |
D). 11.48 p.m |
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40). Which one of the following is present in the largest amount in terms of percent by mass in the earth's crust?
A). Silicon |
B). Oxygen |
C). Carbon |
D). Calcium |
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