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Environment Science Optional I | Question Paper | RE-647 | 2073 [2017] | SEE

Symbol No. …
SEE 2073 (2017)
ENVIRONMENT SCIENCE OPTIONAL I (ऐच्छिक प्रथम वातावरण विज्ञान)
Time: 3 hrs
Full Marks: 100

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| Download-File Size: 52.6 kb | Question Paper Of Environment Science Optional I (RE-647) | 2073/2017 | SEE

दिइएका निर्देशनका आधारमा आफ्नै शैलीमा सिर्जनात्मक उत्तर दिनुहोस्।
Candidates are required to give their answer according to the given instructions.

(Group ‘A’)

Write short answer of any Eighteen questions from this group. [18X4=72]

(Physical Aspect)

Attempt any Seven questions from this sub-group: [7X4=28]

1. What is green house effect? Mention two major causes of green house effect. [2+2=4]

2. Write any four ways of controlling green house effect. [2+2=4]

3. Which layer of atmosphere contains large amount of ozone gas? Mention any three importance of this gas. [1+3=4]

4. What is meant by ozone depleting substances? Mention any six ozone depleting substances. [1+0.5×6=4]

5. Mention any two alternative energy sources and describe about any one of them. [1+3=4]

6. Mention any four effects of ozone layer depletion. [4]

7. What is energy crisis? Write down any two measures to reduce energy crisis. [2+2=4]

8. (Write short notes on): [2+2=4]

a. (Mineral oil)          b. (Coal )

(Chemical Aspect)

Attempt any Two questions from this sub-group: [2×4=8]

9. What is meant by hazardous waste? List any two sources of it with example. [1+1.5+1.5=4]

10. Hazardous waste pollute water sources. Justify this statement with any two appropriate reasons. [4]

11. Mention any four effects of radiation. [4]

(Biological Aspect)

Attempt any Three questions from this sub-group: [3×4=12]

12. Write any four advantages of domestic animals. [4]

13. “Forest should be conserved to protect wildlife.” Justify this statement. [4]

14. Describe the role of wild animals on attaining environmental balance. [4]

15. (Write short notes on): [2+2=4]

a. (Tiger)          b. (Lophophorus)

(Natural Aspect)

Attempt any Two questions from this sub-group. [2×4=8]

16. What is wetland? Write any three differences between eutrophic lake and oligotrophic lake. [1+3=4]

17. Write any four measures that can be adopted for the conservation of wetland. [4]

18. (Write short notes on): [2+2=4]

a. (Lake)
b. (Marsh)

(Socio-economic Aspect)

Attempt any Two questions from this sub-group. [2×4=8]

19. Give introduction of agriculture system in brief. [4]

20. Why is technology important for agricultural development? Write four reasons. [4]

21. (Write short notes on): [2+2=4]

a. (Organic manure)
b. (Insecticides)

(Health and Sanitation Aspect)

Attempt any Two questions from this sub-group. [2×4=8]

22. “Healthy environment helps to control disease.” Justify this statement. [4]

23. Mention any four importance of healthy habitat. [4]

24. (Write short notes on): [2+2=4]

a. (Ventilation)
b. (Workplace Environment)

(Group ‘B’)

Write long answer of any four questions from this group. [4×7=28]

25. Describe any five reasons of ozone layer depletion. Explain two ways for its conservation. [5+2=7]

26. Explain any four effects of hazardous wastes. Write three ways of hazardous waste management. [4+3=7]

27. Clarify the concept of conservation of wildlife and describe six methods for their conservation. [1+6=7]

28. ‘Wetland is a source of food.’ Justify the statement. Mention any four other importance of wetland. [3+4=7]

29. Write in brief about irrigation methods. Describe in detail in what way agriculture provide the opportunity of employment. [1+3+3=7]

30. What is environment pollution? Describe any four effects of environment pollution. [1+(4×1.5)=7]

Check Question Paper Of Environment Science Optional I (RE-647) | Secondary Education Examination [SEE] | 2073/2017.

Environment Science Optional SEE Question Paper 2073 (RE-647)


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