31). What is the difference between asteroids and comets? 1. Asteroids are small rocky planetoids, while comets are tonned of frozen gases held together by rocky and metallic material. 2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury. 3. Comets show a perceptible glowing tail, while asteroids do not. Which of the statements given above is/are correct?
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32). Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when 1. the orbit is geosynchronous 2. the orbit is circular 3. the orbit lies in the plane of the Earth's equator 4. the orbit is at an altitude of 22236 km Select the correct answer using the codes given below
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33). Which of the following statements is the reason for 'Seasons' on the surface of the Earth?
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34). A person stood alone in a desert on a dark night and wanted to reach his village, which was situated 5 km East of the point where he was standing. He ad no instruments to find the direction, but he located the pole star. The most convenient way now to reach his village is to walk in the
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35). Which among the following areas is conducive for well irrigation?
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36). When there is noon at IST meridian people in another place of the Earth are taking their 6 O' clock morning tea. The longitude of the place is
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37). South Pacific island nation Samoa, positioned to the East of the International Date Line, on May 2011 decided to forego a day and shift to the time zone on its West. The reason for this shifting is to
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38). Which one of the following combinations of stalactites arid stalagmites occurrences is correct?
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39). The greatest seasonal contrast at insolation on the Earth is in which of the following latitudinal zones?
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40). Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe? 1. Detection of microwaves in space. 2. Observation of red shift phenomenon in space. 3. Movement of asteroids in space. 4. Occurrence of supernova explosion in space. Select the correct answer using till codes given below
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