Welcome to your Environmental Issues MCQs Mock Test of Class 12th Biology
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Q1. In normal adults, the enzyme which catalyses conversion of MHb into Hb is:
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Q2. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change unburnt hydrocarbons into:
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Q3. Peroxyacyl nitrates (PAN) are formed through photochemical reactions between
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Q4. Rain is called acid rain, its pH is below:
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Q5. Which of the following will be able to cope with greenhouse effect?
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Q6. Which one of the following diseases is not due to contamination of water ?
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Q7. Which of the following is an effect of waste accumulation?
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Q8. Compressed Natural Gas (CNG) is:
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Q9. Increasing skin cancer and high mutation rate are the result of
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Q10. Acid Rain comes under which type of pollution?
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Q11. Which of the following elements is responsible for Minamata disease?
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Q12. The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is:
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Q13. Ozone depletion is occurring widely in
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Q14. Ozone Layer is found in :
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Q15. High value of BOD (Biochemical Oxygen Demand) indicates that :
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Q16. Non-biodegradable pollutants are created by:
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Q17. Waterlogging and soil salinity are some of the problems that have come in the water of
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Q18. Which chemical substance affects the Ozone Layer?
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Q19. Large-scale disposal of solid waste in low areas of the ground and then covering it with earth is called
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Q20. World’s most problematic aquatic weed is:
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Q21. According to the Central Pollution Control Board, particles that are responsible for causing great harm to human health are of diameter
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Q22. Environment (Protection) Act came into force in?
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Q23. A gas produced by paddy fields and involved in global warming is
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Q24. The expanded form of DDT is:
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Q25. The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is
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Q26. Compressed Natural Gas (CNG) is
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Q27. Fluoride pollution mainly affect:
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Q28. What is the 3R approach?
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Q29. Among the following which one causes more indoor chemical pollution?
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Q30. Which of the following is not a cause of natural pollution ?
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Q31. Natural air pollutant are:
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Q32. Ozone depletion shall cause higher incidence of
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Q33. The loudness of a sound that a person can withstand without discomfort is about
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Q34. The Government of India has passed the environment (Protection) Act in the year
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Q35. Bluebaby syndrome results from:
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Q36. Chlorofluoro carbon are responsible for:
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Q37. Joint Forest Management Concept was introduced in India during
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Q38. Which of the following material takes the longest time for biodegradations ?
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Q39 The petrol used in engines filled with catalytic converter should be
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Q40. Which metal inactivates a catalytic converter?
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Q42. The powder of recycled modified plastic is called
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Q43. E-wastes are referred to
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Q44. The greenhouse gases are
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Q45. The present average temperature of earth is
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Q46. The Government of India passed the Water Act in
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Q47. Presence of large amount of nutrients in water cause excessive growth of
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Q48. The world’s most problematic aquatic weed is also called
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Q50. Sanitary landfill were adopted as the substitute for
