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