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Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 6

Questions
1 Bio-oil can be obtained from lignocellulose by
1 Combustion
2 Fast pyrolysis
3 Gasification
4 Transesterification

Answer: Fast pyrolysis
2 The energy released during combustion of methane is ~ 900 kJ/mol. The carbon intensity of methane is
1 ~ 0.05 gram C/kJ
2 ~ 0.013 gram C/kJ
3 ~ 0.018 gram C/kJ
4 ~ 1.08 gram C/kJ

Answer: ~ 0.013 gram C/kJ
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3 The term B10 implies
1 Blending of 10 percent biodiesel with 90 percent conventional diesel.
2 Blending of 90 percent biodiesel with 10 percent conventional diesel.
3 Blending of 50 percent biodiesel with 50 percent conventional diesel.
4 Blending of 1 percent biodiesel with 10 percent conventional diesel.

Answer: Blending of 10 percent biodiesel with 90 percent conventional diesel.
4 The validity period of Environmental Clerance after Environmental Impact Assessment is least for
1 Mining projects
2 River valley projects
3 Harbour projects
4 Area development projects

Answer: Area development projects
5 In Environmental assessment study, interpretation and evaluation should consider
1 Uncertainty of possible impacts
2 Significance of measured impacts
3 Comparison of alternatives
4 All of the above

Answer: All of the above
6 Who are responsible for the public consultation process of EIA ?
1 State Pollution Control Board
2 State Pollution Control Board and District Collector
3 State Pollution Control Board and CPCB Chairman
4 State Pollution Control Board and Civil Society

Answer: State Pollution Control Board and District Collector
7 Which statement is not correct for hazardous wastes ?
1 They contain one or more of 39 toxic compounds
2 They catch fire easily
3 They are nonreactive and stable
4 They are capable of corroding metal containers

Answer: They are nonreactive and stable
8 Right to clean environment is guaranteed in Indian Constitution by
1 Article 14
2 Article 19
3 Article 21
4 Article 25

Answer: Article 21
9 National Ambient Air Quality Standards for major pollutants were notified by CPCB in
1 1994
2 1984
3 2004
4 1974

Answer: 1994
10 Public Liability Insurance Act came into existence in the year
1 1986
2 1989
3 1991
4 1995

Answer: 1991
11 The population of an urban area increased from 5 million to 15 million over a period of 50 years. If the growth of population has been exponential at a constant rate over this period, the growth rate is
1 ~ 0.693 %
2 ~ 1.2 %
3 ~ 1.38 %
4 ~ 2.2 %

Answer: ~ 2.2 %
12 A random sample of size 26 has a mean of 20. The sum of squares of the deviations taken from the mean is 200. If the population mean is 18, what is the value of t-statistic ?
1 ~ 0.9
2 ~ 2.1
3 ~ 3.6
4 ~ 5.2

Answer: ~ 3.6
13 In Y-shaped energy flow model, one arm represents herbivore and the other
1 Carnivore
2 Decomposer
3 Omnivore
4 Secondary consumer

Answer: Decomposer
14 A change in a population’s gene pool over time is called
1 Microevolution
2 Macroevolution
3 Chemical evolution
4 Inorganic evolution

Answer: Microevolution
15 The scale length of variation of pressure in vertical direction in atmosphere is
1 ~ 2.5 km
2 ~ 5 km
3 ~ 7 km
4 ~ 8.5 km

Answer: ~ 7 km

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