SET 4
Introduction: This set
contains 50 multiple-choice questions covering waste management, ozone layer depletion,
CFCs, environmental pollution, and sustainable practices. These questions are
crucial for understanding the human impact on the environment and the measures
needed for environmental protection.
⏳ Time Left: 20:00
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📘 SCIENCE
BIOLOGY | Our Environment-D
📝 Questions: 50
⏱️ Timer: 20 min
Q1. Garbage management is important to:
Q2. Improper waste disposal leads to:
Q3. Ozone in the upper atmosphere is important because it:
Q4. Free oxygen atoms combine with O₂ to form:
Q5. Ozone protects life by absorbing:
Q6. Improper disposal of e-waste causes:
Q7. Ozone layer depletion directly affects:
Q8. Damage to the ozone layer is dangerous because it:
Q9. Ozone is a molecule made up of:
Q10. Ozone layer is located in the:
Q11. Non-biodegradable waste mainly comes from:
Q12. Ozone depletion can be reduced by:
Q13. Recycling plastics helps to:
Q14. Which chemicals are mainly responsible for ozone depletion?
Q15. Untreated industrial waste mainly pollutes:
Q16. Hazardous waste should be:
Q17. CFCs were commonly used as:
Q18. Ultraviolet radiation is harmful mainly because it:
Q19. The biggest environmental concern discussed here is:
Q20. Biodegradable waste mainly includes:
Q21. Sewage should be treated to prevent pollution of:
Q22. Disposable culture has increased mainly due to:
Q23. Which gas replacement is encouraged instead of CFCs?
Q24. The agreement to control CFCs was achieved by:
Q25. Walking instead of using vehicles helps reduce:
Q26. The chemical formula of ozone is:
Q27. Ozone depletion was first noticed sharply in the:
Q28. Human activities affect the environment because humans are:
Q29. Switching off unnecessary lights helps in:
Q30. The international agreement to control CFCs was made in:
Q31. Waste seen at tourist places is mainly due to:
Q32. Managing waste is necessary because:
Q33. Ozone at ground level is:
Q34. Disposable paper cups are preferred over plastic cups because they are:
Q35. Proper waste management requires:
Q36. Electronic waste contains:
Q37. The waste we generate can be classified as:
Q38. High-energy UV radiation splits oxygen molecules into:
Q39. Excessive waste generation is mainly due to:
Q40. Which of the following is an environment-friendly practice?
Q41. The aim of the 1987 agreement was to:
Q42. Kulhads made on a large scale can cause:
Q43. Disposable plastic cups cause environmental problems because they are:
Q44. Waste segregation helps mainly in:
Q45. The local body responsible for waste management may be:
Q46. Ozone is formed in the atmosphere when:
Q47. Improper sewage treatment mainly leads to:
Q48. Which practice helps reduce waste at source?
Q49. Which gas is essential for aerobic life on Earth?
Q50. Garbage is commonly seen in cities due to:
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