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. |
Coal is a __________ resource |
| A. | abiotic |
| B. | inorganic |
| C. | deforestation |
| D. | none of the above |
| Answer» D. none of the above | |
| 2. |
Average total rainfall is 100 - 150 cm in __________ , located in Australia, South America and Africa. |
| A. | tropical savannas |
| B. | chaparrals |
| C. | deciduous forest |
| D. | temperate forest |
| Answer» C. deciduous forest | |
| 3. |
IUCN is also called as |
| A. | Man and Biosphere program |
| B. | World Conservation Union |
| C. | World Conservation Consortium |
| D. | World Wide Conservation Union |
| Answer» C. World Conservation Consortium | |
| 4. |
Rain during November is more acidic than monsoon rain due to |
| A. | dissolved CO2 |
| B. | dissolved SO2 |
| C. | dissolved NO2 |
| D. | none of the above. |
| Answer» C. dissolved NO2 | |
| 5. |
Which of the following is a biodiversity hot sport in India? |
| A. | Western Ghats |
| B. | Nandadevi |
| C. | Eastern Ghats |
| D. | Aravalli |
| Answer» B. Nandadevi | |
| 6. |
Air pollution is severe in |
| A. | Cities |
| B. | Industrialised areas |
| C. | Densely populated areas |
| D. | all of these |
| Answer» E. | |
| 7. |
Cement factory labourers are prone to |
| A. | leukemia |
| B. | bone marrow disease |
| C. | asbestosis |
| D. | cytosilicosis |
| Answer» E. | |
| 8. |
In the northern hemisphere, the number of hours of daylight begin to shorten after the |
| A. | Spring equinox |
| B. | Summer solstice |
| C. | Autumn equinox |
| D. | Winter solstice |
| Answer» C. Autumn equinox | |
| 9. |
Nuclear accidents mostly release radioactive __________ into the atmosphere |
| A. | Carbon |
| B. | Iodine |
| C. | Phosphorus |
| D. | Sulphur |
| Answer» C. Phosphorus | |
| 10. |
All the genes of a population is called |
| A. | gene pool |
| B. | genome |
| C. | gene bunch |
| D. | gene population |
| Answer» B. genome | |
| 11. |
Green plants are absent in deep sea. Why? |
| A. | Light is absent |
| B. | High pressure |
| C. | Low temperature |
| D. | Great depth |
| Answer» B. High pressure | |
| 12. |
Chipco movement is a public agitation that occurred in |
| A. | Mansbal area in Kashmir |
| B. | Silent valley in Kerala |
| C. | Sundarban area in Bengal |
| D. | Tehri Garhwal area of Uttar Pradesh |
| Answer» E. | |
| 13. |
When the air temperature increases, the saturation vapor pressure will: |
| A. | Increase |
| B. | Decrease |
| C. | Remain the same |
| D. | Vary over an increasingly broad range of values |
| Answer» B. Decrease | |
| 14. |
The first Environmental Law in India was enacted in |
| A. | 1947 |
| B. | 1950 |
| C. | 1972 |
| D. | 1982 |
| Answer» C. 1972 | |
| 15. |
Unleaded petrol contains __________ which are known as carcinogenic compounds |
| A. | nitrates |
| B. | sulphates |
| C. | benzene |
| D. | phosphates |
| Answer» D. phosphates | |
| 16. |
Soil erosion can be prevented by |
| A. | Deforestation |
| B. | Afforestation |
| C. | Overgrazing |
| D. | Removal of vegetation |
| Answer» C. Overgrazing | |
| 17. |
Decomposers are otherwise called as |
| A. | Detritivores |
| B. | Primary consumers |
| C. | Organic matter |
| D. | Secondary consumers |
| Answer» B. Primary consumers | |
| 18. |
What is "Black Lung"? |
| A. | Occupational Hazard to the miners |
| B. | Occupational Hazard to navigators |
| C. | Occupational Hazard to pesticide applicators |
| D. | None of these |
| Answer» B. Occupational Hazard to navigators | |
| 19. |
The term "Nuclear winter" is associated with |
| A. | Nuclear War |
| B. | Nuclear disarmament |
| C. | Nuclear weapon testing |
| D. | After effect of a nuclear explosion |
| Answer» E. | |
| 20. |
Area X represents |
| A. | coal |
| B. | solar |
| C. | nuclear |
| D. | oil |
| Answer» B. solar | |
| 21. |
Exxon Valdez? |
| A. | Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected. |
| B. | a plane which crashed and caused death of human life |
| C. | a ship which wrecked on the coast of India |
| D. | none of these. |
| Answer» B. a plane which crashed and caused death of human life | |
| 22. |
The unit of measurement of intensity of sound is in _________ |
| A. | Decibels |
| B. | Lux |
| C. | Parsec |
| D. | Candela |
| Answer» B. Lux | |
| 23. |
The limitating factor in temperate and boreal forest is |
| A. | Nutrients |
| B. | Frost |
| C. | Oxygen |
| D. | Sunlight |
| Answer» E. | |
| 24. |
What is the only continent on earth where Giraffes live in the wild? |
| A. | Africa |
| B. | India |
| C. | Pakisthan |
| D. | Srilanka |
| Answer» B. India | |
| 25. |
Which of the following gases has role an important in maintaining atmospheric temperature? |
| A. | Nitrogen |
| B. | Oxygen |
| C. | Argon |
| D. | Carbon dioxide |
| Answer» E. | |
| 26. |
Pollutants that are introduced into the environment by human activity are called as |
| A. | qualitative pollutants |
| B. | quantitative pollutants |
| C. | anthropogenic pollutants |
| D. | all of these |
| Answer» D. all of these | |
| 27. |
The Salim Ali Bird sanctuary is located at |
| A. | Pondicherry, |
| B. | Thattekad, |
| C. | Anakkatti |
| D. | Kalakkad |
| Answer» C. Anakkatti | |
| 28. |
Fine organic or inorganic particles suspended in air is called |
| A. | particulate pollutant |
| B. | gaseous pollutant |
| C. | aerosol |
| D. | none of these |
| Answer» D. none of these | |
| 29. |
Melanornia (skin cancer) is associated with |
| A. | ozone accumulation |
| B. | ozone depletion |
| C. | acid rain |
| D. | allergens |
| Answer» C. acid rain | |
| 30. |
What is Canopy? |
| A. | Uppermost level of the forest |
| B. | Ground level of the forest |
| C. | Soil in forest |
| D. | Climbers on trees |
| Answer» B. Ground level of the forest | |
| 31. |
"Smog" is a mixture of |
| A. | Smoke and Fog |
| B. | Snow and Fog |
| C. | Snow and Dust |
| D. | Sulphur Dioxide and Fog |
| Answer» B. Snow and Fog | |
| 32. |
_________ is the most commonly used unit of radiation |
| A. | Becquerel |
| B. | Gray |
| C. | Rutherford |
| D. | Curie |
| Answer» E. | |
| 33. |
The amount of oil that may become available for use is called oil |
| A. | Reserves |
| B. | Reservoirs |
| C. | Resources |
| D. | Traps |
| Answer» D. Traps | |
| 34. |
Percentage of forest area recommended by the the national forest policy for plains is |
| A. | 33% |
| B. | 67% |
| C. | 30% |
| D. | 10% |
| Answer» B. 67% | |
| 35. |
Environmental Protection Act was introduced in the year |
| A. | 1986 |
| B. | 1988 |
| C. | 1972 |
| D. | 1989 |
| Answer» B. 1988 | |
| 36. |
If all the water vapor in the atmosphere were to condense and fall to the ground, the globe would be covered with about of water. |
| A. | 1 millimeter |
| B. | 1 inch |
| C. | 1 foot |
| D. | 1 meter |
| Answer» C. 1 foot | |
| 37. |
Which of the following zones in a lake suffers from lack of light and therefore limited photosynthesis is able to take place? |
| A. | Pelagic |
| B. | Littoral |
| C. | Profundal |
| D. | Euphotic |
| Answer» D. Euphotic | |
| 38. |
The transfer of heat by molecule-to-molecule contact: |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | Ultrasonic |
| Answer» B. Convection | |
| 39. |
Which of the following ecological pyramid is always upright? |
| A. | Pyramid of energy |
| B. | Pyramid of number |
| C. | Pyramid of biomass |
| D. | None of these |
| Answer» B. Pyramid of number | |
| 40. |
The biosphere encompasses the total __________ of living material in a region or the globe. |
| A. | Diversity of species |
| B. | Animal population |
| C. | Photosynthesis |
| D. | Weight |
| Answer» E. | |
| 41. |
The simplest aquatic ecosystem can be seen in a |
| A. | River |
| B. | Lake |
| C. | Pond |
| D. | Water Tank |
| Answer» D. Water Tank | |
| 42. |
The undesirable change in physical, chemical or biological characteristics of air, land and water is referred as |
| A. | Pollutants |
| B. | Ecodestructions |
| C. | Pollution |
| D. | All of these |
| Answer» D. All of these | |
| 43. |
Who among the following is commonly called "Bird Man of India"? |
| A. | Salim Ali |
| B. | M.S. Swaminathan |
| C. | M.C. Mehta |
| D. | Raphel Emerson |
| Answer» B. M.S. Swaminathan | |
| 44. |
Birth rate is called |
| A. | mortality |
| B. | vital index |
| C. | natality |
| D. | viability |
| Answer» D. viability | |
| 45. |
Salmonellosis is a disease related to consumption of |
| A. | Chicken |
| B. | Eggs |
| C. | Mutton |
| D. | Fish |
| Answer» E. | |
| 46. |
The effect of interspecific competition on niches is to make them |
| A. | larger |
| B. | smaller |
| C. | more triangular |
| D. | change location |
| Answer» C. more triangular | |
| 47. |
The most widely used pesticides function by disrupting |
| A. | neurological cellular function |
| B. | endocrine function |
| C. | molecular events |
| D. | renal function |
| Answer» B. endocrine function | |
| 48. |
The best way to check soil erosion is by providing adequate trees and |
| A. | Grass cover |
| B. | Manure |
| C. | Water |
| D. | Sand |
| Answer» B. Manure | |
| 49. |
_________ is the element used to produce nuclear energy |
| A. | Palladium |
| B. | Strontium |
| C. | Uranium |
| D. | Rhodium |
| Answer» D. Rhodium | |
| 50. |
DDT is a ______________ pollutant |
| A. | Bio degradable |
| B. | Non bio degradable |
| C. | Un-biodegradable |
| D. | Naturally degradable |
| Answer» C. Un-biodegradable | |