Environmental Science : Grade XII (12), Model Question,SEE Nepal, SEE Question with Solution. Class 12, Grade 12, Grade XII,
Environmental Science
Model Question
Grade: 12 Full Marks: 75 Time: 3 hours
Candidates are required to give their answers in their own words as far as practicable.
The figures at the right margin indicate the full marks.
Attempt ALL the questions.
A. Very Short Questions [11×1 = 11]
1. Define lentic environment.
2. Give any one importance of humus on environment.
3. Write any one importance of biodiversity on agricultural sector.
4. Mention any one activity that you can follow to reduce greenhouse gases emission.
5. What is climate change resilience?
6. Write any one implication of vegetation sampling in biodiversity conservation.
7. Define zero waste management.
8. Mention any two impacts of bio-magnification in ecosystems.
9. "Vermicomposting is more suitable than any other compost as manure". Justify it
any one point.
10. Define Geo-referencing.
11. Write any one use of topographic map in environmental studies.
B. Short Questions [8 × 5 = 40]
12. “Water is life supporting component of an environment”. How unique properties of
water support the above statement?
13. How can we use the knowledge of hydro-logical cycle in agriculture? Explain the
procedures.
14. Why is sampling sites selection important during biodiversity assessment? Explain
one method used to collect data on biodiversity.
15. How has global warming affected the world so far? Analyse critically.
OR
Critically analyze the impacts of climate change in Nepal and explain any two of
them in details.
16. Differentiate between bio-accumulation and bio-magnification in the ecosystem
with examples.
17. Let's suppose that there is a factory nearby your locality that releases toxic effluent
into the river. Suggest how such effluent can be treated so that it does not harm the
biotic ecosystem.
18. Describe the legal approaches for pollution control in Nepal.
OR
Describe the 3R principal of solid waste management.
19. What are the applications of GIS in environment studies?
20. Compare the changes in meteorological parameters in the vertical zonation's of
atmosphere and analyse how such variation affects the overall climatic activities.
21. What is integrated solid waste management? Describe the different methods of
solid waste management in Nepal.
OR
How is solid waste management done in your locality? Explain with reference to
hierarchy of solid waste management.
22. What kind of procedure will you follow if you are appointed as EIA officer in a
national project? Explain such procedures.
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