Environmental Science Online Test (Everyday Science GK)

Maan AliLast Updated: May 13, 2026
Test Name Environmental Science Online Test
Topic Everyday Science
Total Questions: 50
Time Allowed: 25 Minutes
Total Marks: 50
How to Attempt Test: Please choose the right Option in MCQ-type question.
Test Helpful For: Everyday Science Test
General Knowledge
PPSC/FPSC/CSS/NTS/KPPSC/SPSC
Interview Questions Answer
Recruitment Tests

Environmental Science is one of the most important sections of Everyday Science for Pakistani competitive exams including CSS, PMS, PPSC, FPSC, NTS, PCS, OTS, SPSC, KPPSC and other recruitment tests. This MCQ collection is specially designed for Pakistani students to strengthen conceptual understanding of environmental issues, pollution, climate change, ecosystems, biodiversity, conservation, renewable energy, and sustainable development. These questions range from basic to advanced level and include important concepts frequently asked in past papers.

Environmental Science Online Test (Everyday Science GK)

1. Which international day is celebrated on June 5 each year?

2. Which pollutant is mainly responsible for acidification of oceans?

3. What is the main source of methane emissions globally?

4. Which environmental disaster occurred at the Chernobyl Nuclear Power Plant in 1986?

5. Which Pakistani city is most associated with severe winter smog?

6. Which forest type is found in northern Pakistan?

7. Which environmental concept refers to reducing waste generation at the source?

8. What is the major cause of deforestation in Pakistan?

9. Which layer of the atmosphere contains the ozone layer?

10. Which international agreement aims to limit global warming to below 2°C?

11. Which greenhouse gas has the highest heat-trapping ability?

12. Acid rain is mainly caused by emissions of:

13. Which device measures atmospheric pressure?

14. Which organization publishes the annual World Air Quality Report?

15. What is the primary cause of coral bleaching?

16. Which type of energy produces electricity without direct carbon emissions?

17. Which country has the largest tropical rainforest in the world?

18. Which type of pollution is measured in decibels?

19. The term biodiversity refers to:

20. Which Pakistani national park is famous for the conservation of snow leopards?

21. The process of planting trees on barren land is called:

22. Which term describes species found only in a particular area?

23. What is the main purpose of recycling?

24. Which renewable energy source is most widely used in Pakistan?

25. Which gas is responsible for ozone depletion?

26. Which Pakistani province contains the largest mangrove forests?

27. What does the term carbon footprint mean?

28. Which environmental issue is caused by excessive nutrients in water bodies?

29. Which atmospheric layer burns most meteors before they reach Earth?

30. Which greenhouse gas is produced mainly by rice paddies and wetlands?

31. What is the major environmental effect of oil spills?

32. Which country hosted the first Earth Summit in 1992?

33. Which environmental issue is caused by excessive groundwater extraction?

34. Which renewable energy source uses underground heat?

35. Which process converts organic waste into nutrient-rich material?

36. Which environmental pollutant is mainly responsible for photochemical smog?

37. Which gas is the most abundant greenhouse gas in Earth’s atmosphere naturally?

38. Which ecosystem stores the largest amount of carbon?

39. Which gas is primarily responsible for global warming?

40. What is the major source of marine plastic pollution?

41. Which environmental treaty focused on protecting the ozone layer?

42. Which country hosted COP28 in 2023?


 

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Maan AliLast Updated: May 13, 2026

Maan Ali

Hey there! I'm Maan Ali, your online test prep pal. Join me in the adventure of acing exams with ease. I'll share tricks, practice tests, and all you need to rock your studies. Let's make learning fun and success a sure thing!
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