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. |
Almost, 6 to 12 percent, reduction in phytoplankton production in marginal ice zone due to |
| A. | increases in UV-B |
| B. | Increase in ozone |
| C. | increase pollutants |
| D. | increase in GHGs |
| Answer» B. Increase in ozone | |
| 2. |
HCFCs can be broken down in lower atmosphere, before ascending into the |
| A. | Stratosphere |
| B. | Troposphere |
| C. | Ionosphere |
| D. | Thermosphere |
| Answer» B. Troposphere | |
| 3. |
In thermosphere radiowaves are: |
| A. | Scattered |
| B. | Reflected |
| C. | Formed |
| D. | Produced |
| Answer» C. Formed | |
| 4. |
Greenhouse gases are carbon dioxide, methane and: |
| A. | Nitrogen |
| B. | Chlorofluorocarbons |
| C. | Sulphur dioxide |
| D. | Chemicals |
| Answer» C. Sulphur dioxide | |
| 5. |
Acid rain formed when 'sulphur dioxide' and 'nitrogen oxide' reacted with: |
| A. | Air |
| B. | Water |
| C. | Pollutants |
| D. | Aerosols |
| Answer» C. Pollutants | |
| 6. |
Spray cans containing chemical substance known as |
| A. | Feron I |
| B. | Feron II |
| C. | Cl |
| D. | Phosphorous |
| Answer» C. Cl | |
| 7. |
What triggers deforestation? |
| A. | Fishing |
| B. | Industries |
| C. | Agriculture |
| D. | Poultry farming |
| Answer» D. Poultry farming | |
| 8. |
'CFCs' are chemically |
| A. | Unreactive |
| B. | Reactive |
| C. | Toxic |
| D. | Flammable |
| Answer» B. Reactive | |
| 9. |
Vegetation covered surfaces has a low albedo level, due to light absorbed in |
| A. | Respiration |
| B. | Condensation |
| C. | Precipitation |
| D. | Photosynthesis |
| Answer» E. | |
| 10. |
'IPCC' is world scientific body assessing: |
| A. | Global Warming |
| B. | Deforestation |
| C. | Afforestation |
| D. | Urbanization |
| Answer» B. Deforestation | |
| 11. |
In paleoclimatology, what does different oxygen isotopes determine? |
| A. | Mass |
| B. | Density |
| C. | Pressure |
| D. | Temperature |
| Answer» E. | |
| 12. |
Releasing greenhouse gases into atmosphere, casues |
| A. | Global Warming |
| B. | Eutrophication |
| C. | Humidity |
| D. | Acid Deposition |
| Answer» B. Eutrophication | |
| 13. |
CFCs can be repleced by other halocarbos, such as |
| A. | Hydrochlorofluorocarbon |
| B. | Hydro carbons |
| C. | Carbon dioxide |
| D. | Halogen |
| Answer» B. Hydro carbons | |
| 14. |
Photovoltaic' cells are solar cell, which are made of |
| A. | Steel |
| B. | Iron |
| C. | Silicon |
| D. | Metal |
| Answer» D. Metal | |
| 15. |
Incoming solar radiation is transmitted by atmosphere to the |
| A. | Forests |
| B. | Biosphere |
| C. | Earth's Surface |
| D. | Stratosphere |
| Answer» D. Stratosphere | |
| 16. |
About 30% of incoming solar radiation is reflected by surface of earth and: |
| A. | Hydrosphere |
| B. | Biosphere |
| C. | Atmosphere |
| D. | Troposphere |
| Answer» D. Troposphere | |
| 17. |
Ppm' stands for |
| A. | parts per million |
| B. | Page per minute |
| C. | permenant pace maker |
| D. | People pressive movement |
| Answer» B. Page per minute | |
| 18. |
Bromine' is more effective in destroying CFCs than |
| A. | Chlorine |
| B. | PAN |
| C. | Feron 11 |
| D. | Argon |
| Answer» B. PAN | |
| 19. |
Herbivorous zooplankton depends on |
| A. | phytoplankton |
| B. | Plants |
| C. | Animals |
| D. | Grass |
| Answer» B. Plants | |
| 20. |
Some planktons decomposes back into water column, releasing |
| A. | Nutrients |
| B. | Heat |
| C. | Carbon dioxide |
| D. | Oxygen |
| Answer» B. Heat | |
| 21. |
An atom is surrounded by: |
| A. | Nucleus |
| B. | Neutrons |
| C. | Protons |
| D. | Electrons |
| Answer» E. | |
| 22. |
Mb' stands for |
| A. | Medium Business |
| B. | Multi business |
| C. | Milli bar |
| D. | Multi power battary |
| Answer» D. Multi power battary | |
| 23. |
UV-B radiation adversely affect immune system, causing: |
| A. | Bone marrow cancer |
| B. | Asthama |
| C. | infectious diseases |
| D. | Food poisioning |
| Answer» D. Food poisioning | |
| 24. |
Almost 30%, forests cover world's |
| A. | Urban areas |
| B. | Land areas |
| C. | Coastal areas |
| D. | Mountain areas |
| Answer» C. Coastal areas | |
| 25. |
AOGCM stands for |
| A. | Atmosphere-Ocean Coupled General Circulation Model |
| B. | Atmosphere Ocean Coupled General Climate Model |
| C. | Atmosphere Optimization Coupled General Circulation Model |
| D. | Atmosphere Ocean Climate General Circulation Model |
| Answer» B. Atmosphere Ocean Coupled General Climate Model | |
| 26. |
In troposhere, temperature changes with altitude resulting rate is known as: |
| A. | Stability rate |
| B. | Lapse rate |
| C. | Inversation rate |
| D. | Retention rate |
| Answer» C. Inversation rate | |
| 27. |
According to scientific evidence, major factor of causing global warming is |
| A. | Human Activities |
| B. | motor Transport |
| C. | Smoke from factories |
| D. | Acid rains |
| Answer» B. motor Transport | |
| 28. |
Greatest decline, being observed over America and Argentina, ranges from 5% to |
| A. | 0.08 |
| B. | 0.1 |
| C. | 0.09 |
| D. | 0.01 |
| Answer» C. 0.09 | |
| 29. |
Smog usually arise by combustion of |
| A. | Wood |
| B. | Coal |
| C. | Textile |
| D. | Plants |
| Answer» C. Textile | |
| 30. |
Human beings are at centre of concerns for: |
| A. | Environmental Development |
| B. | Social Development |
| C. | Sustainable Development |
| D. | Economical Development |
| Answer» D. Economical Development | |
| 31. |
Primary energy is a source of energy such as fossil fuels, nuclear or: |
| A. | Radiochemistry |
| B. | Electrical power |
| C. | Wind power |
| D. | Solar energy |
| Answer» D. Solar energy | |
| 32. |
Without greenhouse gases, earth would be too cold to |
| A. | Sustain Life |
| B. | Obtain water |
| C. | Breathe |
| D. | All of above |
| Answer» B. Obtain water | |
| 33. |
In 1990, concentration of carbon dioxide is considered to be responsible for causing |
| A. | Green house effect |
| B. | Deforestation |
| C. | Acid rain |
| D. | Eutriphication |
| Answer» B. Deforestation | |
| 34. |
High humidity allows for rapid oxidation of SO₂ to form |
| A. | Hydrochloric acid |
| B. | Nitric Acid |
| C. | Sulfuric acid |
| D. | Aerosols |
| Answer» D. Aerosols | |
| 35. |
Phytoplanktons' are eaten by: |
| A. | Zooplanktons |
| B. | Insects |
| C. | Birds |
| D. | Fishs |
| Answer» B. Insects | |
| 36. |
In transpiration process, water transfers from plants to: |
| A. | The atmosphere |
| B. | The biosphere |
| C. | The hydrosphere |
| D. | The troposphere |
| Answer» B. The biosphere | |
| 37. |
Hectopascal (hPa) Unit of atmospheric pressure is equal to |
| A. | Feets |
| B. | Kelometers |
| C. | Meters |
| D. | Millibars |
| Answer» E. | |
| 38. |
Tree crops and rubber plays an important role in |
| A. | Incineration |
| B. | Deforestation |
| C. | Eutrophication |
| D. | Afforestation |
| Answer» C. Eutrophication | |
| 39. |
A 'stratosphere' is a well recognized region of atmosphere, having |
| A. | 20-90km Altitude |
| B. | 10 to 50km Altitude |
| C. | 20-40km Altitude |
| D. | 10-70km Altitude |
| Answer» C. 20-40km Altitude | |
| 40. |
Ozone' and 'CFCs' are destroyed by |
| A. | Natural process |
| B. | Artificial Process |
| C. | Antropogenic Activities |
| D. | Cemical process |
| Answer» B. Artificial Process | |
| 41. |
CFCs are widely used as coolants in refrigeration and |
| A. | Air conditioners |
| B. | Heaters |
| C. | Microwave |
| D. | Iron filling |
| Answer» B. Heaters | |
| 42. |
Earth is encircled in a layer of air, known as |
| A. | Gases |
| B. | Ozone |
| C. | vapours |
| D. | Atmosphere |
| Answer» E. | |
| 43. |
Non renewable energy includes: |
| A. | Fossil fuels |
| B. | Solar energy |
| C. | Wind energy |
| D. | Tidal enery |
| Answer» B. Solar energy | |
| 44. |
Examples of renewable energy includes hydro power and |
| A. | Gas |
| B. | Oil |
| C. | Coal |
| D. | coppicing |
| Answer» E. | |
| 45. |
Slash and burn agriculture is clearing of foreste land for |
| A. | Growing the crops |
| B. | Industries |
| C. | Food production |
| D. | Relailing |
| Answer» B. Industries | |
| 46. |
Average weather in a particular region is known as: |
| A. | Precipitation |
| B. | Climate |
| C. | Condensation |
| D. | Infiltration |
| Answer» C. Condensation | |
| 47. |
Cryosphere' is a component of climate system, consisting of |
| A. | Permafrost |
| B. | Rocks |
| C. | Planktons |
| D. | Sea shells |
| Answer» B. Rocks | |
| 48. |
Scientists predicted that at current rate of deforestation, world's rain forests will be vanished in |
| A. | 300 years |
| B. | 200 years |
| C. | 100 years |
| D. | 900 years |
| Answer» D. 900 years | |
| 49. |
Electron is a negatively charged component of the |
| A. | Atom |
| B. | Compound |
| C. | Molecules |
| D. | Element |
| Answer» B. Compound | |
| 50. |
Which chemical was used as a foam blowing agents? |
| A. | Cl |
| B. | CFCs |
| C. | PAN |
| D. | Feron 11 |
| Answer» C. PAN | |