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. |
What are the example of non renewable energy? |
| A. | Nuclear Energy |
| B. | Fossil Fuel |
| C. | Coal |
| D. | All of these |
| Answer» E. | |
| 2. |
Methane stays in the atmosphere for how many years? |
| A. | 12 years |
| B. | 13years |
| C. | 17years |
| D. | 20years |
| Answer» B. 13years | |
| 3. |
How much of the rainforest disappear per year? |
| A. | 100km² |
| B. | 20000km² |
| C. | 100000km² |
| D. | 30000km² |
| Answer» C. 100000km² | |
| 4. |
Most common 'isotope' of carbon is |
| A. | ¹²C |
| B. | ¹C |
| C. | ³C |
| D. | ²C |
| Answer» B. ¹C | |
| 5. |
Rate of ozone depletion is increasing, approximately |
| A. | 1.5 percent per year |
| B. | 06.5 percent per year |
| C. | 0.5 percent per year |
| D. | 8.5 percent per year |
| Answer» D. 8.5 percent per year | |
| 6. |
In light skinned population, UV radiations cause |
| A. | Asthma |
| B. | Skin Damage |
| C. | Infections |
| D. | nonmelanoma skin cancer |
| Answer» E. | |
| 7. |
One of basic reason of habitat loss includes: |
| A. | Afforestation |
| B. | Deforestation |
| C. | Plantation |
| D. | Floods |
| Answer» C. Plantation | |
| 8. |
When did green Revolution start? |
| A. | 1960 |
| B. | 1965 |
| C. | 1970 |
| D. | 1969 |
| Answer» B. 1965 | |
| 9. |
Many people believed that GM seed will help the world to |
| A. | Feed |
| B. | destroy |
| C. | balance |
| D. | quality |
| Answer» B. destroy | |
| 10. |
Which island countries are alarmed at the prospects of global warming? |
| A. | Maldives and Seychelles |
| B. | Singapore and new Zealand |
| C. | Fiji and Malta |
| D. | Ice land and Japan |
| Answer» B. Singapore and new Zealand | |
| 11. |
It is expected that the concentration of carbon dioxide will be doubled in |
| A. | 2080 |
| B. | 2090 |
| C. | 2050 |
| D. | 2070 |
| Answer» B. 2090 | |
| 12. |
Why the sea does not heat up quickly? |
| A. | The sunrays penetrates more deeply into the sea. |
| B. | The currents distribute the heat |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 13. |
Glaciers are melting due to the increase in the earths |
| A. | GHGs |
| B. | Water level |
| C. | Temperature |
| D. | Sea level |
| Answer» D. Sea level | |
| 14. |
The issue of climate change was first discussed at the |
| A. | Earth Summit in Rio |
| B. | Environmental protocol |
| C. | Kyoto Protocol |
| D. | Montreal Protocol |
| Answer» B. Environmental protocol | |
| 15. |
Why carbon dioxide is so important in our atmosphere? |
| A. | Use for the process of Photosynthesis |
| B. | Absorbs long wave heat radiations |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 16. |
21% of heat is reflected by |
| A. | Atmosphere |
| B. | Clouds |
| C. | Dust |
| D. | Pollutants |
| Answer» C. Dust | |
| 17. |
Why the concentration of carbon dioxide is large in the atmosphere? |
| A. | Due to industrialization |
| B. | Due to large amount of fossil fuel used in the world |
| C. | Due to human activities |
| D. | Due to the air pollution |
| Answer» C. Due to human activities | |
| 18. |
Carbon dioxide contributes how much percent of green house effect in the atmosphere? |
| A. | 64% |
| B. | 78% |
| C. | 69% |
| D. | 90% |
| Answer» B. 78% | |
| 19. |
Since when the global warming has speeding up? |
| A. | 1960 |
| B. | 1970 |
| C. | 1980 |
| D. | 1950 |
| Answer» D. 1950 | |
| 20. |
Methane contributes how much of green house effect in the atmosphere? |
| A. | 10% |
| B. | 18% |
| C. | 20% |
| D. | 25% |
| Answer» C. 20% | |
| 21. |
Since the Kyoto protocol, how much emission has been increased by USA per year? |
| A. | 3% |
| B. | 7% |
| C. | 8% |
| D. | 2% |
| Answer» B. 7% | |
| 22. |
Kyoto protocol was refused by which country? |
| A. | Canada |
| B. | USA |
| C. | Pakistan |
| D. | India |
| Answer» C. Pakistan | |
| 23. |
The rate of insolation vary from |
| A. | Place to place |
| B. | Atmosphere |
| C. | Dust areas |
| D. | All of these |
| Answer» B. Atmosphere | |
| 24. |
The solar energy absorbed by the surface is transformed into |
| A. | Energy |
| B. | Heat |
| C. | Gas |
| D. | All of these |
| Answer» C. Gas | |
| 25. |
Most rainforests are present in which countries? |
| A. | Developing countries |
| B. | Underdeveloped countries |
| C. | Progressive countries |
| D. | Undeveloped countries |
| Answer» B. Underdeveloped countries | |
| 26. |
150 years ago, the average temperature of earth was about |
| A. | 15°C |
| B. | 14°C |
| C. | 12°C |
| D. | 13°C |
| Answer» C. 12°C | |
| 27. |
Aerosols, usually found in the |
| A. | Hydrosphere |
| B. | Stratosphere |
| C. | Troposphere |
| D. | Biosphere |
| Answer» D. Biosphere | |
| 28. |
A chlorine atom can destroy a number of molecules of ozone in a: |
| A. | Photochemical reaction |
| B. | Catalytic cycle |
| C. | chain Reaction |
| D. | Chemical Reaction |
| Answer» C. chain Reaction | |
| 29. |
Location of wind turbines is playing a vital role for |
| A. | Wave Energy |
| B. | Solar energy |
| C. | Wind energy |
| D. | Coal production |
| Answer» D. Coal production | |
| 30. |
Sources of nitrous oxide includes: |
| A. | Fossil fuel combustion |
| B. | Fertizers |
| C. | Biomass burning |
| D. | All of above |
| Answer» E. | |
| 31. |
What is common between ozone hole and green house effect? |
| A. | CFC are responsible in formation of both of them |
| B. | they are present in stratosphere |
| C. | They both are global issue |
| D. | They effect human health only |
| Answer» B. they are present in stratosphere | |
| 32. |
Energy produced from sun is called: |
| A. | Electricity |
| B. | Power |
| C. | Heat |
| D. | Solar Radiations |
| Answer» E. | |
| 33. |
Plantation, playing a major role in reducing rate of |
| A. | Acid Rain |
| B. | Deforestation |
| C. | Eutriphication |
| D. | Afforestation |
| Answer» C. Eutriphication | |
| 34. |
What were cleared during industrial revolution to make farms, factories and cities? |
| A. | Forests |
| B. | Deserts |
| C. | Animals Grazing areas |
| D. | All of these |
| Answer» B. Deserts | |
| 35. |
The greatest impact of the forest destruction was felt in which areas? |
| A. | Tropical Areas |
| B. | Temperate Latitudes |
| C. | Africa |
| D. | Asia |
| Answer» C. Africa | |
| 36. |
Montreal protocol was signed in |
| A. | 1987 |
| B. | 1988 |
| C. | 1999 |
| D. | 2000 |
| Answer» B. 1988 | |
| 37. |
Which continent has the highest forest area in the world? |
| A. | Africa |
| B. | Central and south america |
| C. | Asia |
| D. | Europe |
| Answer» C. Asia | |
| 38. |
Soil, that are formed under coniferous forests are |
| A. | Infertile |
| B. | Fertile |
| C. | Less Nutrients |
| D. | Less water |
| Answer» B. Fertile | |
| 39. |
In which protocol it was pledged to stop using CFCs? |
| A. | Montreal Protocol |
| B. | Environmental protocol |
| C. | Kyoto Protocol |
| D. | Paris Convention |
| Answer» B. Environmental protocol | |
| 40. |
What are the strategies used for the reduction of green house gases? |
| A. | Tree Plantation/ Alternative Sources of energy |
| B. | less carbon dioxide emission |
| C. | Use of Renewable energy |
| D. | Sustainable use of resources |
| Answer» B. less carbon dioxide emission | |
| 41. |
CFCs are used in cleaners, working as a blowing agents in the |
| A. | Textile mills |
| B. | Production of foam |
| C. | Paints |
| D. | Coal |
| Answer» C. Paints | |
| 42. |
Acid deposition distrubs |
| A. | Ocean current |
| B. | Pollutants |
| C. | Radiations and waves |
| D. | Ecological balance |
| Answer» E. | |
| 43. |
Semi conductor silicon Boron solar chips, having |
| A. | A neutral efficiency Ratio |
| B. | A low efficiency Ratio |
| C. | A high efficiency Ratio |
| D. | A medium efficiency Ratio |
| Answer» C. A high efficiency Ratio | |
| 44. |
Which country meets the 90% of its need from Geothermal and Hydro energy? |
| A. | Iceland |
| B. | Antarctica |
| C. | Australia |
| D. | Germany |
| Answer» B. Antarctica | |
| 45. |
In a biological pump, carbon dioxide in atmosphere is dissolved in |
| A. | Ponds |
| B. | Rivers |
| C. | Sea water |
| D. | Lakes |
| Answer» D. Lakes | |
| 46. |
'Deforestation' also causes: |
| A. | Acid Rain |
| B. | Afforestation |
| C. | Eutriphication |
| D. | Climate change |
| Answer» E. | |
| 47. |
Aerosols, absorbing and emitting |
| A. | Energy |
| B. | Infrared radiation |
| C. | Short wave radiation |
| D. | Long wave radiations |
| Answer» E. | |
| 48. |
Temperature falls, with an approaching height in |
| A. | Stratospher |
| B. | Troposhere |
| C. | Ionosphere |
| D. | Biosphere |
| Answer» C. Ionosphere | |
| 49. |
UV radiations' are known to be harmful for cornea and |
| A. | Retina of the eye |
| B. | Lens of the eye |
| C. | Lashes of the eye |
| D. | Skin of the eye |
| Answer» C. Lashes of the eye | |
| 50. |
Power dissipation index measures destructive power of: |
| A. | Cyclones |
| B. | Floods |
| C. | Volcanoes |
| D. | Earthquakes |
| Answer» B. Floods | |