MCQOPTIONS
Saved Bookmarks
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. |
Sustainability requires |
| A. | Conservations of resources |
| B. | Minimizing depletion of non-renewable sources |
| C. | Using sustainable practices for managing renewable resources |
| D. | All the above |
| Answer» E. | |
| 2. |
The objectives of the Wild Life (protection) Act 1972 is |
| A. | To preserve the biodiversity |
| B. | Protection and conservation of wild life |
| C. | To maintain essential ecological and life supporting systems |
| D. | All the above |
| Answer» E. | |
| 3. |
Freon's are called |
| A. | Ozone |
| B. | Methane |
| C. | Solvents |
| D. | Hydrocarbons |
| Answer» E. | |
| 4. |
Largest reservoir of Nitrogen is exists in : |
| A. | Atmosphere |
| B. | Stratosphere. |
| C. | Hydrosphere |
| D. | Lithosphere |
| Answer» B. Stratosphere. | |
| 5. |
Liquefied petroleum gas is a mixture of |
| A. | Propane and butane |
| B. | Methane and propane |
| C. | Methane and butane |
| D. | Methane and ethane |
| Answer» B. Methane and propane | |
| 6. |
EPA means : |
| A. | Environmental Protection Act |
| B. | Environmental Prevention Act |
| C. | Environmental Pollution Act |
| D. | Environmental Protection Agency |
| Answer» B. Environmental Prevention Act | |
| 7. |
Sustainable development |
| A. | Encourages environmentally economic growth |
| B. | Discourages environmentally economic growth |
| C. | Encourages environmentally harmful and unsustainable forms of economic growth |
| D. | All the above |
| Answer» E. | |
| 8. |
Solar radiations consist of |
| A. | Visible region |
| B. | Infra-red region |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 9. |
Domestic sewage is |
| A. | Waste water from industries |
| B. | Waste water from residential areas |
| C. | Waste water generated from kitchens and bathrooms |
| D. | None of the above |
| Answer» D. None of the above | |
| 10. |
Recycled water can be used for |
| A. | Crop irrigation |
| B. | Landscape gardening |
| C. | Replenishing fast depleting aquifers |
| D. | All of these |
| Answer» E. | |
| 11. |
Primary cause of acid rain around the world is due to |
| A. | Ozone |
| B. | carbon dioxide |
| C. | sulfur dioxide |
| D. | carbon monoxide |
| Answer» D. carbon monoxide | |
| 12. |
Water Pollution, 'Prevention and Control Act' was enacted in the year |
| A. | 1954 |
| B. | 1964 |
| C. | 1974 |
| D. | 1984 |
| Answer» D. 1984 | |
| 13. |
Earth's body temperature is approximately equal to |
| A. | 16.4�C |
| B. | 26.4�C |
| C. | 36.4�C |
| D. | 46.4�C |
| Answer» B. 26.4�C | |
| 14. |
What is the percentage of fresh water available in lakes and streams? |
| A. | 0.001 |
| B. | 0.0001 |
| C. | 0 |
| D. | 0 |
| Answer» C. 0 | |
| 15. |
"Word ""Environment"" is derived from :" |
| A. | Italy |
| B. | French |
| C. | German |
| D. | English |
| Answer» C. German | |
| 16. |
Decreased soil fertility through rapid leaching of the essential mineral nutrients is due to |
| A. | Reforestation |
| B. | Deforestation |
| C. | Over exploitation |
| D. | Recycling of forest products |
| Answer» C. Over exploitation | |
| 17. |
The earth's land surface covered by forest is about |
| A. | 0.3 |
| B. | 0.4 |
| C. | 0.5 |
| D. | 0.6 |
| Answer» B. 0.4 | |
| 18. |
Tidal power plants are not preferred by environmentalists because, |
| A. | Tidal power is a renewable source |
| B. | Tidal power can be developed only in coasts |
| C. | Tidal power stations bring about major ecological changes in sensitive coastalecosystem |
| D. | None of the above |
| Answer» C. Tidal power stations bring about major ecological changes in sensitive coastalecosystem | |
| 19. |
The air pollutant which causes severs damage to plants, even at much lower concentrations than what may be harmful to human health is |
| A. | Peroxyacyl nitrates (PAN) |
| B. | Ozone |
| C. | Fluorine |
| D. | None of these |
| Answer» B. Ozone | |
| 20. |
The protocol that reduces green house gas emissions is |
| A. | Kyoto protocol |
| B. | Vienna protocol |
| C. | Montreal protocol |
| D. | Cartagena protocol |
| Answer» B. Vienna protocol | |
| 21. |
Ozone is present in which layers of the atmosphere? |
| A. | Stratosphere |
| B. | Mesosphere |
| C. | Troposphere |
| D. | Thermosphere |
| Answer» B. Mesosphere | |
| 22. |
Major source of Fluoride available in : |
| A. | River water |
| B. | Food products |
| C. | Both (a) and (b) |
| D. | Ground water |
| Answer» D. Ground water | |
| 23. |
The two major components of ecosystem are |
| A. | Abiotic and biotic |
| B. | Cyclic and biologic |
| C. | Adiabatic and isotropic |
| D. | Ecologic and climatologic |
| Answer» B. Cyclic and biologic | |
| 24. |
Which of the following is a biotic component of an ecosystem? |
| A. | Fungi |
| B. | Wind |
| C. | Sunlight |
| D. | Temperature & Water |
| Answer» B. Wind | |
| 25. |
Physical pollution of water is due to |
| A. | PH |
| B. | Chlorides |
| C. | Turbidity |
| D. | All of these |
| Answer» D. All of these | |
| 26. |
Fermentation in the biogas plant is carried out between |
| A. | 30-50�C |
| B. | 35-50�C |
| C. | 85-15�C |
| D. | None of the above |
| Answer» B. 35-50�C | |
| 27. |
Amount of Carbon Dioxide(CO2) content in atmospheric Air is normally |
| A. | 0.0021 |
| B. | 0.0032 |
| C. | 0.0042 |
| D. | 0.0043 |
| Answer» C. 0.0042 | |
| 28. |
Acid rain affects |
| A. | Soil |
| B. | Plants |
| C. | Materials |
| D. | All of the above |
| Answer» E. | |
| 29. |
Which of the following is not a Natural mineral? |
| A. | Nitrogen |
| B. | Asbestos |
| C. | Limestone |
| D. | Fluorospar |
| Answer» B. Asbestos | |
| 30. |
The primary reason for large scale decline in population death rate during 20Ih century was |
| A. | Improved environmental conditions |
| B. | Improved medical care and control ofepidemics |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» C. Both (a) and (b) | |
| 31. |
Which of the following is major Environmental issues in Mining activities? |
| A. | Water pollution |
| B. | Soil Degradation |
| C. | Air pollution and Dust |
| D. | All the above |
| Answer» E. | |
| 32. |
Which of the following components of the environment are effective transporters of matter? |
| A. | Atmosphere and lithosphere |
| B. | Atmosphere and hydrosphere |
| C. | Lithosphere and thermosphere |
| D. | Hydrosphere and lithosphere |
| Answer» E. | |
| 33. |
'World Environmental Day' is celebrated every year on: |
| A. | 5th May |
| B. | 5th June |
| C. | 5th July |
| D. | 18th July |
| Answer» C. 5th July | |
| 34. |
____ is the best environmental clean alternative fuel. |
| A. | CNG |
| B. | Coal |
| C. | Petrol |
| D. | Diesel |
| Answer» B. Coal | |
| 35. |
Loss of water content through the plants into the atmosphere is called : |
| A. | Evaporation |
| B. | Vaporization |
| C. | Hydraulic cycle |
| D. | Transpiration |
| Answer» E. | |
| 36. |
Good example of sedimentary cycle is |
| A. | Oxygen cycle |
| B. | Sulphur cycle |
| C. | Nitrogen cycle |
| D. | Carbon cycle |
| Answer» C. Nitrogen cycle | |
| 37. |
Biotic components include |
| A. | All living organisms |
| B. | Light, temperature etc |
| C. | Water, mineral and gases |
| D. | Self-nourishing green plants |
| Answer» B. Light, temperature etc | |
| 38. |
Green revolution is |
| A. | Crop variety improvement |
| B. | Judicious use of fertilizers |
| C. | Expansion of irrigation |
| D. | All the above |
| Answer» E. | |
| 39. |
Anthropoginal activities means : |
| A. | Human activities |
| B. | Natural activities |
| C. | Bacteriological activities |
| D. | Wild animals activities |
| Answer» B. Natural activities | |
| 40. |
Animal husbandry may result in |
| A. | Genetic Damage |
| B. | Ozone depletion |
| C. | Global warming |
| D. | None of the above |
| Answer» D. None of the above | |
| 41. |
Global atmospheric temperatures are likely to be increased due to |
| A. | Burning of fossil fuels |
| B. | Water pollution |
| C. | Soil erosion |
| D. | None of the above |
| Answer» B. Water pollution | |
| 42. |
Acid rains are more prominent in |
| A. | Arid regions |
| B. | Tropical regions |
| C. | Temperate regions |
| D. | Equally prominent in all |
| Answer» B. Tropical regions | |
| 43. |
Which of the following is not caused by the use of fertilizers in agriculture? |
| A. | Eutrophication |
| B. | Methemoglobinemia |
| C. | Acidification and Salinity of soils |
| D. | None of these |
| Answer» C. Acidification and Salinity of soils | |
| 44. |
Energy obtained from the Earth's hot interior is called the |
| A. | Geo-Thermal energy |
| B. | Thermal energy |
| C. | Biomass energy |
| D. | None ofthese |
| Answer» B. Thermal energy | |
| 45. |
Generation of wind energy is mainly based on which factor |
| A. | Storms |
| B. | Pressure |
| C. | Velocity of wind |
| D. | Direction of wind |
| Answer» D. Direction of wind | |
| 46. |
Thickness of the Ozone layer is measured in which units? |
| A. | dB |
| B. | DU |
| C. | PPB |
| D. | PPM |
| Answer» C. PPB | |
| 47. |
First International Earth summit was held at |
| A. | Germany |
| B. | Stockholm |
| C. | Johannesburg |
| D. | Riode Janeiro |
| Answer» C. Johannesburg | |
| 48. |
Direct conversion of solar energy is attained by |
| A. | Galvanic cells |
| B. | Electrolytic cells |
| C. | Hydrogen fuel cells |
| D. | Solar photovoltaic system |
| Answer» E. | |
| 49. |
Hydrogen can be produced commercially by |
| A. | Cracking of ammonia |
| B. | Electrolysis of water |
| C. | Both (a) and (b) |
| D. | Gasification |
| Answer» D. Gasification | |
| 50. |
World environment day is celebrated on |
| A. | April 5th |
| B. | June 5th |
| C. | November 5th |
| D. | December 5th |
| Answer» C. November 5th | |