MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When was 'Montreal protocol' signed by 24 nations? |
| A. | 1988 |
| B. | 1985 |
| C. | 1987 |
| D. | 1984 |
| Answer» D. 1984 | |
| 2. |
'OECD' is a consortium of: |
| A. | 30 countries |
| B. | 20 countries |
| C. | 40 countries |
| D. | 10 countries |
| Answer» B. 20 countries | |
| 3. |
Carbon dioxide in atmosphere is mainly caused by burning of fossil fuels and |
| A. | Eutrophication |
| B. | Afforestation |
| C. | Deforestation |
| D. | Urbanization |
| Answer» D. Urbanization | |
| 4. |
What does ultraviolet radiation cause ? |
| A. | Skin Cancers |
| B. | Asthma |
| C. | Bone weakness |
| D. | Blood pressure |
| Answer» B. Asthma | |
| 5. |
13C isotope of carbon having |
| A. | Two protons |
| B. | Six protons |
| C. | Three protons |
| D. | One proton |
| Answer» C. Three protons | |
| 6. |
El Nino, largey influenced on global |
| A. | Temperature |
| B. | Weather |
| C. | Climate |
| D. | Precipitation |
| Answer» D. Precipitation | |
| 7. |
In 1987, Montreal protocol was passed to reduce emissions of |
| A. | Carbon monoxide |
| B. | Carbon dioxide |
| C. | Carbon |
| D. | Chlorofluorocarbons |
| Answer» E. | |
| 8. |
Molecules of 'CFCs' are dissociated by ultraviolet radiations in the |
| A. | Stratosphere |
| B. | Atmosphere |
| C. | Biosphere |
| D. | Troposphere |
| Answer» B. Atmosphere | |
| 9. |
An estimates of 80 percent, animals lives in |
| A. | Sea |
| B. | Oceans |
| C. | Forests |
| D. | Mountains |
| Answer» D. Mountains | |
| 10. |
Between 1928 and 1958, Dobson established a worldwide network of |
| A. | Aerosol Monitoring station |
| B. | Pollution monitoring station |
| C. | Climate monitoring station |
| D. | ozone monitoring stations |
| Answer» E. | |
| 11. |
Subsidence occurs due to over extraction of |
| A. | Coastal areas |
| B. | Ground water |
| C. | Rivers |
| D. | Atmosphere |
| Answer» C. Rivers | |
| 12. |
Forests help in driving: |
| A. | Water Cycle |
| B. | Nutrient Cycle |
| C. | Climate change |
| D. | Global warming |
| Answer» B. Nutrient Cycle | |
| 13. |
Lifespan of carbon dioxide is |
| A. | 200 years |
| B. | 100 years |
| C. | 300 years |
| D. | 400 years |
| Answer» C. 300 years | |
| 14. |
Fraction of light reflected by a surface is known as: |
| A. | Precipitation |
| B. | Albedo |
| C. | Infiltration |
| D. | Condensation |
| Answer» C. Infiltration | |
| 15. |
What are some man made greenhouse gases? |
| A. | Perfluorocarbons (PFCs) |
| B. | Hydrofluorocarbons (HFCs) |
| C. | Chlorofluorocarbons (CFC) |
| D. | All of above |
| Answer» E. | |
| 16. |
GHGs' stands for |
| A. | Greenhouse Gases |
| B. | Greenhouse gum |
| C. | Global House Gas |
| D. | Global House Girder |
| Answer» B. Greenhouse gum | |
| 17. |
In respiration, plants and animals break down stored food, utilizing oxygen to: |
| A. | Consume energy |
| B. | Produce energy |
| C. | Distroy Energy |
| D. | Buy energy |
| Answer» C. Distroy Energy | |
| 18. |
According to recent data, as surface temperature increases, it would also give rise to |
| A. | Atmospheric gases |
| B. | AtmospherIc water vapors |
| C. | Atmospheric Pressure |
| D. | Atmospheric humidity |
| Answer» E. | |
| 19. |
Burning of fossil fuel giving off |
| A. | Nitrogen |
| B. | Carbon dioxide |
| C. | Carbon monoxide |
| D. | Argon |
| Answer» C. Carbon monoxide | |
| 20. |
'DOM' stands for |
| A. | Disruption organic matters |
| B. | Dissolved organic matter |
| C. | Distrubed organic matter |
| D. | Dropped organic matter |
| Answer» C. Distrubed organic matter | |
| 21. |
Biomass is available in form of |
| A. | Liquid Waste |
| B. | Plastic Waste |
| C. | biodegradable waste |
| D. | Urea |
| Answer» D. Urea | |
| 22. |
Term cutting down of forests is known as: |
| A. | Plantation |
| B. | Afforestation |
| C. | Deforestation |
| D. | Farming |
| Answer» D. Farming | |
| 23. |
A wall designed as a passive solar energy collector is known as: |
| A. | Heat Wall |
| B. | Sun walls |
| C. | Solar Walls |
| D. | Power Wall |
| Answer» D. Power Wall | |
| 24. |
Plant give out oxygen in process of |
| A. | Eutrophication |
| B. | Photosynthesis |
| C. | Infiltration |
| D. | Precipitation |
| Answer» C. Infiltration | |
| 25. |
At beginning of 21st century, there were about: |
| A. | 6000 million people in the world |
| B. | 7000 Million people in the world |
| C. | 10.000 Million people in the world |
| D. | 9000 Million people in the world |
| Answer» B. 7000 Million people in the world | |
| 26. |
Under normal conditions, highest ozone values can be found in |
| A. | USA and Mexico |
| B. | Canadian Arctic and Siberia, |
| C. | Australia and Africa |
| D. | Germany and France |
| Answer» C. Australia and Africa | |
| 27. |
'RES' stands for |
| A. | Reverse energy sources |
| B. | Recognized Energy Source |
| C. | Renewable Energy Sources |
| D. | Reverse Ecological sources |
| Answer» D. Reverse Ecological sources | |
| 28. |
Troposphere contains most of air in the |
| A. | Atmosphere |
| B. | Biosphere |
| C. | Hydrosphere |
| D. | Ionosphere |
| Answer» B. Biosphere | |
| 29. |
'Ozone layer' is known as earth's |
| A. | Greenhouse Gases |
| B. | Protection |
| C. | Sun Screen |
| D. | Air |
| Answer» D. Air | |
| 30. |
Sources and sinks are processes involved in generating and destroying: |
| A. | Moisture |
| B. | Air |
| C. | Greenhouse gases |
| D. | Pollutants |
| Answer» D. Pollutants | |
| 31. |
Compounds that consist of bromine or halons can destroy: |
| A. | Tropospheric Ozone |
| B. | Mesospheric Ozone |
| C. | Ionosphere |
| D. | stratospheric ozone |
| Answer» E. | |
| 32. |
What causes urbanization? |
| A. | Urban migration |
| B. | Urban habitat |
| C. | Urban civilization |
| D. | Urban climate change |
| Answer» B. Urban habitat | |
| 33. |
Wind energy, working more actively on cloudy days and |
| A. | Sunny days |
| B. | Rainy seasons |
| C. | Winters |
| D. | Cold weather |
| Answer» C. Winters | |
| 34. |
'CFCs' are used in fire extinguishers and as propellants in: |
| A. | Plants |
| B. | Chemicals |
| C. | Aerosols |
| D. | Fertilizers |
| Answer» D. Fertilizers | |
| 35. |
Main source of green house effect includes deforestation and |
| A. | Afforestation |
| B. | Eutrophication |
| C. | Acid rain |
| D. | Burning of fossil fuel |
| Answer» E. | |
| 36. |
According to scientists, CFCs are supposed to last for more than 100 years, in the |
| A. | Biosphere |
| B. | Stratosphere |
| C. | Troposphere |
| D. | Hydrosphere |
| Answer» C. Troposphere | |
| 37. |
Geothermal heat pumps can tap into resource in |
| A. | Cooling Building |
| B. | Providing water |
| C. | Sustaining Life |
| D. | generating energy |
| Answer» B. Providing water | |
| 38. |
A single molecule of 'feron' gas can destroy a thousands of |
| A. | Ozone Molecules |
| B. | Mathene molecules |
| C. | Cl molecules |
| D. | Bromine Oxide |
| Answer» B. Mathene molecules | |
| 39. |
Freon 12 belongs to group known as |
| A. | Chlorofluorocarbon |
| B. | Alklane |
| C. | Dichlorodifluoromethane |
| D. | Both a and c |
| Answer» E. | |
| 40. |
Global warming is damaging earth's climate as well as the |
| A. | Biosphere |
| B. | Biological climate |
| C. | Physical climate |
| D. | Hydrosphere |
| Answer» D. Hydrosphere | |
| 41. |
Snow covered surfaces, having |
| A. | High Albedo Level |
| B. | Low Albedo Level |
| C. | No Albedo Level |
| D. | Medium Albedo Level |
| Answer» B. Low Albedo Level | |
| 42. |
In 1952, London smog is referred to as |
| A. | Aerosols |
| B. | Pollutant smog |
| C. | Commercial Smog |
| D. | Industrial Smog |
| Answer» E. | |
| 43. |
According to a general survey, One in five Americans would be more at risk in developing: |
| A. | Skin Cancers |
| B. | Cataracts |
| C. | Asthma |
| D. | Bone Cancer |
| Answer» B. Cataracts | |
| 44. |
Bioconversion' is nonpolluting, environmentally feasible and |
| A. | Un reliable process |
| B. | Cost Effective Process |
| C. | Un environmental Friendly |
| D. | Environmaental friendly |
| Answer» C. Un environmental Friendly | |
| 45. |
Melting of ice and snow increases amount of water in the: |
| A. | Ponds |
| B. | Rivers |
| C. | Oceans |
| D. | Lakes |
| Answer» D. Lakes | |
| 46. |
UV-B radiations, having a profound impact on human health, such as |
| A. | skin cancer and infectious diseases |
| B. | Asthama and heart attacks |
| C. | Hair fall and asthama |
| D. | Damage to vital organs |
| Answer» B. Asthama and heart attacks | |
| 47. |
Nitrogen oxides contribute how much of green house effect in the atmosphere? |
| A. | 5% |
| B. | 7% |
| C. | 4% |
| D. | 8% |
| Answer» D. 8% | |
| 48. |
Atom is a smallest unit of an element, which takes part in a |
| A. | Photosynthesis |
| B. | Chemical Reaction |
| C. | Eutrophication |
| D. | Deforestation |
| Answer» C. Eutrophication | |
| 49. |
Which chemical is a 'ozone' depleting solvent? |
| A. | PAN |
| B. | CFCs |
| C. | Carbon tetrachloride |
| D. | Nitrogen |
| Answer» D. Nitrogen | |
| 50. |
In atmosphere, methane constitutes about |
| A. | 1.2 ppm |
| B. | 1.8 ppm |
| C. | 6 ppm |
| D. | 7 ppm |
| Answer» C. 6 ppm | |