वायु सैनिक भर्ती परीक्षा ग्रुप ’एक्स’ तकनीकी ट्रेड डॉ. लाल एवं जैन

वायु सैनिक भर्ती परीक्षा ग्रुप ’एक्स’ तकनीकी ट्रेड डॉ. लाल एवं जैन
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वायु सैनिक भर्ती परीक्षा ग्रुप ’एक्स’ तकनीकी ट्रेड डॉ. लाल एवं जैन

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Publisher: Upkar Prakashan
ISBN: 9788174825445
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followed by questions based on the contents of the passage. Read the passage attentively and choose suitable answer from among the given options for each question. The average life span of humanity throughout all history was twenty seven years. In the nineteenth century, however, science and improved technology trebled life expectancy. As technological capabilities improved and life expectancy increased, the number of babies per family went down, demonstrating the fact that nature keeps on balancing the population figure. After major wars, when large number of young and healthy men are killed, baby-making increases.The birth rate continues to rise for five years or so after the war ends until the score is rectified. All this happens without conscious cooperation or even the knowledge of the human beings. When the probabilities of human survival are poor, nature makes many babies. When the chances of man s survival improve, nature reduces the number of new babies. 1. The author says that throughout history A Everyman died on attaining twenty seven years. B Average life of human race was of twenty seven years C Everyman lived twenty seven years or so. D Some men lived for less than twenty seven years 2. With the development of science and technology in the 19th century A More people were expected to live longer B People expected more comforts in life. C People expected to produce more babies. D People expected more agricultural production. 3. As science and technology improve, the number of babies A Becomes directly proportional to life expectancy.
B Becomes inversely proportional to life expectancy C Is checked by Nature D Is encouraged by Nature 4. The title that best expresses the ideas of the passage is A Population and Nature B Natural cheeks on population C Population and war D Life and babies