Chapter 1.ENVIRONMENTAL STUDIES

Transcription

1 Chapter 1.ENVIRONMENTAL STUDIES 1. Environmental study is a subject that encompasses (a) All branches of science only. (b) Only social science. (c) Branches of science and social science. (d) All branches of science art and social science. 2. The unlimited exploitation of nature by human being resulted in (a) Environmental pollution. (b) Health problem. (c) Decrease in biodiversity. (. 3. The primary objective of environmental study is to (a) Generate an environment friendly mindset among all classes of people. (b) Enjoy economic growth at the cost of quality of human life. (c) Realize the bio diversity by increased environmental ethics among all classes of people. (d) Get holistic view for the sustenance of life on the earth on an infinite scale. 4. The importance of environment (a) Was only recognized in recent year. (b) Was recognized in ancient time. (c) Was not recognized in ancient time. (d) None of the above. 5. The conservation of natural resources. (a) Was not encouraged in ancient India. (b) Was encouraged in ancient India. (c) Is recently being used in India. (d) None of these. 6. Life on earth constantly interact with it s surrounding called environments which essentially consist of. (a) Biotic component only (b) Only abiotic components. (c) Both biotic and abiotic components. (d) None of these. Ans: c 7. The conservation of environment requires. (a) Maintenance of biodiversity. (b) Maintenance of gaseous and material cycles. (c) Maintenance of ecological order and natural balance. (d) All of these. 8. Biosphere is made up of. (a) Atmosphere and lithosphere. (b) Hydrosphere and atmosphere. (c) Lithosphere and hydrosphere. (d) Hydrosphere, Atmosphere and lithosphere. 9. The segment \segments of the environmental,responsible for conservation of radiant energy to chemical energy(carbohydrates) through photosynthesis is \are (a) Hydrosphere. (b) Lithosphere. (c) Atmosphere andlithosphere. (d) Biosphere. 10. The largest sink (pollutant receptor) of the planet is. (a) Atmosphere. (b) Hydrosphere. (c) Lithosphere. (d) Biosphere. 11. Which of the following components of the earth has least pollutant receptor capability? (a) Atmosphere

2 Ans: a (b) Hydrosphere. (c) Lithosphere. (d) Biosphere. 12. Biosphere is the (a) Envelope of gases surrounding the earth. (b) The outermost layer of earth crust. (c) The thin layer of organic matter containing all living thing on the surface of the earth. (d) None of above. Ans: c 13. The earth summit at Rio de Janeiro was held with the aim of integrity environmental imperatives with developmental aspiration in (a) June (b) December (c) December (d) June 1993 Ans: a 14. The global action plan adopted at earth summit held at Rio de Janeiro in 1972 is also known as (a) Agenda 20. (b) Agenda 22. (c) Agenda 23. (d) Agenda Environmental degradation is due to (a) Rapid industrialization. (b) Onset of different developmental work. (c) Fast urbanization leading deforestation. (. Chapter 2.Natural Resources 1. Which of the following is not a renewable resource? a) Coal b) Wind power c) Geothermal energy d) Dendrothermal energy 2. The main causes of deforestation are? a) Overgrazing and agriculture b) Industry and other developmental projects c) Timber extraction 3. Which of the following methods of timber extraction cause minimum environmental damage? a) Clear felling b) Hand logging c) Selective logging d) Reduce impact logging 4. Forest is responsible for a) Watershed protection b) Land erosion control c) Providing economical and environmental benefits 5. The main construction of dam purpose is a) Irrigation b) Flood control c) Hydroelectricity d) Provide water to industry ANS- c 6. A sudden uncontrolled descent of a mass of earth under the force of gravity is called a) Soil erosion b) Mining c) Landslide d) Earthquake ANS- c 7. The heat of interior of the earth present at the volcanic reasons, geysers or hot springs is called as a) Geothermal energy b) Dendrothermal energy c) Nuclear energy d) Wind energy

3 8. is the perpetual source of energy a) Nuclear reactors b) Hydropower c) Solar energy d) None of the above ANS- c 9. The least quality of coal with 95% carbon content and only 5% volatile matter is a) Lignite coal b) Anthracite coal c) Bituminous coal d) Peat coal ANS- b 10. All sources of water such as the ocean,lakes,rivers and underground water together constitute: a) hydrosphere b) atmosphere c) lithosphere d) biosphere 11. Famine is mainly result of a) Deforestation b) Overuse of surface water c) A prolonged drought ANS-d 12. Prospecting,exploration,development and exploitation are the four phases of a) Mining b) Urbanization c) Deforestation d) Industrialization 13. Burning of biomass produces a) Thermal energy b) Bioenergy c) Wind energy d) Hydropower 14. Water-logging and soil salinity are the outcomes of a) Over irrigation b) Mining c) Soil erosion d) Acid rain 15. The equitable use of resources is necessary for a) Sustainable development b) Better lifestyle for all c) To sustain natural wealth 16. India has second largest reserve of after Brazil a) Iron ore b) Bauxite c) Coal d) Copper 17. Hygroscopic and combined water a) Are used by plants during transpiration b) Compensates for loss due to evapotranspiration by plants c) Stored in the xylem tissues of plant d) Are of no use to plants 18. Any material that can be transformed into more valuable and useful product or service is called a) Resource b) Mineral c) Product d) None of the above 19. The constituents of producer gas are ANS- b

4 ANS-c a) 25 percent water vapour,75 percent methane b) 42 percent methane,8 percent propane, rest carbon dioxide c) 55 percent methane,45 percent of carbon dioxide. d) 45 percent methane, 20 percent of carbon dioxide, 35 percent propane 20. The single largest river development scheme in India is a) The Narmada valley b) The Damodar valley c) The Ganga valley d) The Tapti valley Chapter 3.ECOSYSTEM 1. The Study of interaction between The living species and the environment is called A) Biology B) Antology C) Ecology D) Zoology Ans C) ecology 2. The interdependence of the living organisms among themselves and with the environment is called A) Ecology B) Ecosystem. C) biology D) antology Ans B) Ecosystem 3. Ecosystem consists of A) Biotic components Only B) Only abiotic Components C) Both biotic And abiotic components Ans C) Both biotic and abiotic components 4. The quantity of the abiotic material present in an is known as A) Concentration B) Standing stage C) Non living stage Ans B) standing stage 5. The names of measure habitats present in the biosphere are A) Freshwater and terrestrial B) Marine and man enggineered C) All of the above Ans C) all of the above 6. Men engineered consists of A) desert and forest B) grassland and tree C) agriculture and aquaculture D) all of the above Ans C)agriculture and aquaculture 7. The sequence of organisms which feed on one another for there survival is known as A) passage of nutrients from one organisms to other B) food chain C) trophic level D) biodiversity Ans B)food chain

5 8. The food chain in an helps to maintain A) The feeding relationship in nature,thus biodiversity B) Flow of energy in the C) Passage of nutrients in the D) All of the above Ans D) All of the above 9. The phenomenon of accumulation of non biodecradasble contaminants in higher trophic level is known as A) Bioprospecting B) biomagnification C) biopiracy D) biorentdiation Ans C) biopiracy 10. The dissipation of energy during its transmission from one trophic level to another is in agreement with A) first law of thermodynamics B) second law of thermodynamics C) third law of thermodynamics D )none of the above Ans B)second law of thermodynamics 11. Which of the following statement is not correct? A)flow of energy in an is unidirectional,from herbivores to carnivores B) In a food chain, transfer of materials takes place through cycling C)top carnivores always get more energy then organisms presents nearer to the producer D) unidirectional flow of energy prevents the from collapsing Ans C)top carnivores always get more energy then organisms presents nearer to the producer 12. The science of system of control in an is known as A) Syncology B) Cybernatics C) Biocoenoses Ans B) Cybernatics 13. The importance of lies in A) Transfer of food B) flow of energy C) cycling of materials D) both B & C Ans D)both B & C 14. The graphical representation of an organism position as well as function at successive trophic levels is called A)food chain B)food web C)ecological pyramid D)biogeochemical cycle Ans C)ecological pyramid 15. The cyclization of matter through the atmosphere, hydrosphere, biosphere & lithosphere is known as A) Food web B) Material cycling C)bio geochemical cycle D) bio magnifications Ans C)biogeochemical cycle 16. In case of a parasitic food chain the shape of pyramid of number is always A) upright B) Linear C) Inverted

6 D) Not certain Ans C) Inverted 17. The shape of pyramid of biomass for a pond or any aquatic is A)inverted B)upright C)linear D)not certain Ans A) Inverted 18. The graphical representation of the interrelation of producer and consumer in an is termed as A) Ecological niche B) Ecological pyramid C) Trophic level D) Food web Ans B) Ecological pyramid 19. The main source of energy in an is A)suger stored in plants B)solar energy C)Heat released during transpiration D)Heat released during fermentation Ans B)solar energy 20. A Food chain consist of A)producer,consumers,dcomposers B)producer, carnivores, decomposer C)primary,producer, herbivores, carnivores D)producers,Primary consumer, carnivores Ans A)producer,consumers,dcomposers