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Civil Services Prelims Exam 2011 .Paper 1(Solved ) -General Studies part 6/7

76. Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower atmosphere because of—
1. its escape into the outer stratosphere.
2. the photosynthesis by phytoplankton in the oceans.
3. the trapping of air in the polar ice caps.
Which of the statements given
above is/are correct?
(A) land2 (B) 2only
(C) 2and3 (D) 3 only
77. In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the—
1. decomposer microorganisms to the surface.

2. nutrients to the surface.
3. bottom-dwelling organisms to the surface.
Which of the statements given
above is / are correct?
(A) 1 and 2 (B) 2 only
(C) 2and3 (D) 3only
78. If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because—
(A) the soil of rain forest is deficient in nutrients
(B) propagules of the trees in a rain forest have poor viability
(C) the rain forest species are slow-growing
(D) exotic species invade the fertile soil of rain forest
79. The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?
(A) It has a high rainfall that supports luxuriant vegetative growth
(B) It is a confluence of different bio-geographical zones
(C) Exotic and invasive species have not been introduced in this region
(D) It has less human interfe rence
80. With reference to India, consider the following Central Acts—
1. Import and Export (Control) Act, 1947
2. Mining and Mineral Devel opment (Regulation) Act, 1957
3. Customs Act, 1962
4. Indian Forest Act, 1927 Which of the above Acts have relevance to bearing on the biodiversity conservation in the country?
(A) land3only
(B) 2, 3 and 4 only
(C) l,2,3and4
(D) None of the above Acts
81. Karl Marx explained the process of class struggle with the help of which one of the following theories?

(A) Empirical liberalism
(B) Existentialism
(C) Darwin’s theory of evol ution
(D) Dialectical materialism
82. A layer in the Earth’s atmosp here called Ionosphere facilita tes radio communication. Why?
1. The presence of ozone causes the reflection of radio waves to Earth.
2. Radio waves have a very long wavelength.
Which of the statements given
above is/are correct?
(A) I only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2
83. Both Foreign Direct Investment (FDI) and Foreign Institutional Investor (Fli) are related to investment in a country. Which one of the following statements best represents an important difference between the two?
(A) FlI helps bring better mana gement skills and technology, while FDI only brings in capital
(B) Fil helps in increasing capital availability in general, while FDI only targets specific sectors
(C) FDI flows only into the secondary market, while Fil targets primary market
(D) Fli is considered to be more stable than FDI
84. A genetically engineered form of brinjal known as the Bt-brinjal, has been developed. The object ive of this is—
(A) To make it pest-resistant
(B) To improve its taste and nutritive qualities
(C) To make it drought-resistant
(D) To make its shelf-life longer
85. With reference to ‘Aam Admi Bima Yojana’, consider the following statements—
1. The member insured under the scheme must be the head of the family or an earning member of the family in a rural landless household.

2. The member insured must be in the age group of 30 to 65 years.
3. There is a provision for free scholarship for up to two children of the insured who are studying between classes 9 and 12.
Which of the statements given above is/are correct?
(A) I only
(B) 2and3oniy
(C) land3only
(D) 1,2and3
86. In the Union Budget 2011-12, a full exemption from the basic customs duty was extended to the bio-based asphalt (bioasp halt). What is the importance of this material?
1. Unlike traditional asphalt, bioasphalt is not based on fossil fuels.
2. Bioasphalt can be made from non-renewable resources.
3. Bioasphalt can be made from organic waste materials.
4. It is eco-friendly to use bioa sphalt for surfacing of the ro3ds.
Which of the statements given
above are correct?
(A) 1,2and3only
(B) i,3and4only
(C) 2and4only
(D) 1,23and4
87. Consider the following—
1. Carbon dioxide
2. Oxides of Nitrogen
3. Oxides of Suipher
Which of the above is/are the emission/emissions from coal combustion at thermal power plants?
(A) I only
(B) 2 and 3 only
(C) I and 3 only
(D) 1,2and3
88. Satellites used for telecommuni cation relay are kept in a geos tationary 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
22,236 km.
Select the correct answer using
the codes given below—
(A) 1,2 and 3 only
(B) 1, 3 and 4 only
(C) 2and4only
(D) 1,23and4
89. India has experienced persistent and high food inflation in the recent past. What could be the reasons?
1. Due to a gradual switchover to the cultivation of comm ercial crops, the area under the cultivation of foodgrains has steadily decreased in the last five years by about 30%.
2. As a consequence of increasi ng incomes, the consumpt ion patterns of the people have undergone a significant change.
3. The food supply chain has stru├Ętural constraints.
Which of the statements given above arc correct?
(A) land2only
(B) 2and3only
(C) land3only
(D) 1,2and3
90. At present, scientists can determ ine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benef it us?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease resistant animal breeds.
Which of the statements given
above is/are correct?
(A) land 2only
(B) 2 only
(C) 1 and 3 only
(D) 1,2and3



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