WBCHSE Environment Studies Question Paper 2018
The state of West Bengal is one of the first in India where the modern system of education was established by British Missionaries. Since then, it has evolved into the fine education system and is now monitored by state run autonomous body.
The West Bengal Council of Higher Secondary Education (WBCHSE) came into existence in 1975. It is an autonomous examining authority. It is responsible for conducting examinations for standard XII for both government and private schools affiliated to this board. It is responsible for improvement and promotion of education in the state.
The WBCHSE has made a sustained effort towards a quality uniform evaluation system all over the state of West Bengal. More than 6800 schools and over 16 lakhs students are being monitored by the Council. The task has been more challenging in context of the very competitive global environment and a diverse range of subjects.
The H.S. education is a significant part of the overall education system. West Bengal has the distinction of being the pioneer in the modern education system by virtue of the influence of the great literary and social bypath finders.
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West Bengal Council of Higher Secondary Education
Environment Studies
QUESTION PAPER 2018
W.B.COUNCILS ENVIRONMENTAL STUDIES QUES. PAPER-2018
PART-A (MARKS: 40)
1. Answer the following questions (Alternatives are to be noted): 8x5=40
(i) What do you mean by 'domesticated biodiversity? Discuss briefly the different causes for loss of biodiversity. 3+5
Or, State the differences between 'in situ' and 'ex situ' conservation. What do you understand by 'genetic engineering? +5
(ii) Writea short note on 'Environment Protection Act, 1986. State briefly the components of environmental management. 4+4
Or what do you understand by assessment of environmental indicator's ? Explain with examples +5
(iii) What do you mean by'sustainable development ? Discuss the necessity of sustainable development in improving the quality of life at present and future times.
(iv) Discuss the role of government and non-governmental agencies in the field of sustainable development.
(v) Discuss the impacts of agro-chemicals on environment.
Or, Describe briefly the different elements of sustainable agriculture.
PART B (MARKS 40)
1. The total number of Tiger Reserve Projects' in India is
(a) 38. (b) 28
(c) 18. (d) 48
2. In which state of India is 'Panchmarhi Biosphere Reserve' situated?
(a) Karnataka. (b Tamil Nadu
(c) Madhya Pradesh. (d) Uttar Pradesh
3. The scientific name of Coconut tree is
(a) Mangfera indica
(b) Albizia procera
(c) Cocus nucifera
(d) none of these
4. Which of the following has been designated as a 'Megadiversity country'?
(a) Pakistan. (b) irag
(c) India . (d) None of these
5. From which country was the plant Lantana camara brought to india ?
(a) Russiaa. (b) China
(c) Mexico. (d) Bangladesh
Q.6. Which flower is predominantly used in sacrificial fires in Gujarat ?
(a) Jaba (Hibiscus rosa-sinensis
(b) Sami (Prosopis spicigera)
(c) Datura (Datura stramonium)
(d) None of these
7. Yam (Dioscorea deltoidea) is used in
(a) manufacture of contraceptive pills
(b) prevention of cancer
(c) prevention of malaria
(d) none of these
8. The estimated number of threatened plant species in india is
(a) 93. (b) 1336
(c) 49. (d) none of these
Q.9. The example of a renewable resource is
(a) petroleum. (b) coal
(c) forest wealth . (d) none of these
10. To which country was the Mali civilization associated with?
(a) Australia. (b) india
(c) Africa. (d) None of these
11. What is the maximum permissible limit of annual average concentration ot nitroge oxide (NO) in the air of residential area ?
(a) 80 microgramme/ cubic m
(b) 60 microgramme/ cubic m
(c) 15 microgramme / cubic m
(d) None of these
12. What is the maximum permissible limit of annuai average concentration of Suspended Particuiate Matter (S.P.M.) in the air of rural area?
fal 360 microgramme/cubic m
(b) 120 microgramme/cubic m
c) 140 microgramme/cubic m
(d) 70 microgramme/cubic m
13.What is maximum permissible iimit of iron in drinking water as per 1.S. 10500 ?
(a) 0.1milligramme/litre
(b) 0.2 milligramme/litre
c) 0.3 milligramme/litre
(d) 0.4 milligramme/litre
14. What is the maximum permissible limit of noise at daytime in a silence zone?
(a) 75 decibel. (b) 65 decibel
(c) 50 decibel. (d) 45 decibel
15. In which year was the 'National Biodiversity Authority' established in India?
(a) 2003 . (b) 1981
(c) 1992 . (d) 1972
16.Over-use of D.D.T. leads to
(a) biodiversity
(b) bioluminescence
(c) biomagnification
(d) none of these
17.One example of physical component of soil is
(a) fungus. (b) earthworm
(c) water. (d) none of these
18. The oldest form of traditional agroforestry is
(a) Jhum cultivation. (b) Taungya
(c) Social foresty. (d) none of these
19. What is India's rank in the world in respect off reptile diversity?
(a) 15th . (b) 10th
(c) 5th. (d) 20th
20. How much area of global land is getting converted to deserts every year ?
(a) 180 lakh hectares
(b) 80 lakh hectares
(c) 40 lakh hectares
(d) 20 lakh hectares
21. How much area of global land is getting lost due to soil erosion every year ?
(a) 100 lakh hectares
(b) 80 lakh hectares
(c) 50 lakh hectares
(d) 30 lakh hectares
22. An example of mycorrhiza is
(a) Glomus. (b) Nostoc
(c) Millet . (d) Alfalfa
Q.23. One example of bio-herbicide is
(a) sunflower . (b) D.D.T.
(c) urea. (d) phosphate