MCQOPTIONS
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MCQOPTIONS
This section includes 107 Mcqs, each offering curated multiple-choice questions to sharpen your Environment & Ecology knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Assertion (A) : The habitat of Date Palms is warm deserts with little of no rainfall.Reason (R) : Date Palm is a tree of waterless desert.Code |
| A. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| B. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
| C. | (A) is true but (R) is false |
| D. | (A) is false but (R) is true |
| Answer» D. (A) is false but (R) is true | |
| 52. |
Consider the following statementsMajuli, the largest river island in the world is environmentally degraded due to1. floods2. erosion3. increasing population pressure4. development of statements are correct ? |
| A. | 1 and 4 |
| B. | 1 and 3 |
| C. | 1, 2 and 3 |
| D. | 2, 3 and 4 |
| Answer» B. 1 and 3 | |
| 53. |
Assertion (A) : After carbon, nitrogen is the most abundant element in the biosphere.Reason (R) : Nitrogen is essential for synthesizing the living matter in nature.Code |
| A. | Both (A) and (R) are individually true and (R) is the correct explanation of (A) |
| B. | Both (A) and (R) are individually true but (R) is not the correct explanation of (A) |
| C. | (A) is true but (R) is false |
| D. | (A) is false but (R) is true |
| Answer» C. (A) is true but (R) is false | |
| 54. |
Consider the following statements1. The boundary of a National Park is circumscribed by legislation wheres that of a Biosphere Reserves is no t circumscribed by legislation.2. In a National Park, Particular attention is paid to the conservation of genepools whereas it is not so in a Wildlife Sanctuary.Which of the statement (s) given above is / are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 55. |
Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason / reasons is this attributable ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 56. |
Match List - I (Major Biome) with List - II (Physical Characteristic) and the correct answer using the code given below the lists |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» C. C. | |
| 57. |
Which of the following statements about Radioactive pollution are correct ? |
| A. | 1 and 2 |
| B. | 1 and 4 |
| C. | 1, 3 and 4 |
| D. | 2, 3 and 4 |
| Answer» D. 2, 3 and 4 | |
| 58. |
In the context of CO |
| A. | Carbon Footpring |
| B. | Carbon Credit Rating |
| C. | Clean Development Mechainsm |
| D. | Emission Reduction Norm |
| Answer» D. Emission Reduction Norm | |
| 59. |
Match List - I (Environmental Degradation) with List - II (Constituent Causing Degradation) and select the correct answer using the code given below the lists |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» D. D. | |
| 60. |
Consider the following which can be found in the ambient atmosphere |
| A. | 1 and 2 only |
| B. | 3 only |
| C. | 2 and 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 61. |
With reference to a fresh water lake, consider the following characteristics |
| A. | 1 only |
| B. | 1 and 2 |
| C. | 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 62. |
What is eutrophication ? |
| A. | Process by which organisms concentrate certain chemical substances to levels above those found in their natural environment |
| B. | Excessive growth of algae in nutrient-rich water leading to reduced oxygen levels and the death of many organisms |
| C. | The ability of organisms in a food chain to convert energy received into living matter |
| D. | Population explosion of species in an ecosystem due to the removal of their predators |
| Answer» C. The ability of organisms in a food chain to convert energy received into living matter | |
| 63. |
The following forms of relationship exist between man and his environment according to the development of geographical thought |
| A. | 2,1,3 |
| B. | 3,1,2 |
| C. | 1,3,2 |
| D. | 1,2,3 |
| Answer» E. | |
| 64. |
The state of inactivity adopted by desert animals during the hottest and driest season is known as |
| A. | basal metabolism |
| B. | dormancy |
| C. | aestivation |
| D. | hibernation |
| Answer» D. hibernation | |
| 65. |
The concept of 'stop and go' Determinism was put forward by |
| A. | Griffith Taylor |
| B. | Jean Brunhes |
| C. | J.E. Spencer |
| D. | Vidal de la Blache |
| Answer» B. Jean Brunhes | |
| 66. |
The Minamata incident, an example for environmental degradation, is due to which one of the following ? |
| A. | Air pollution |
| B. | Nuclear disaster |
| C. | Water pollution |
| D. | Thermal pollution |
| Answer» D. Thermal pollution | |
| 67. |
Select the correct sequence of food chain in the Aretic waters from the following |
| A. | Zooplankton - diatoms - fish - polar bear - seal |
| B. | Diatoms - zooplankton - fish - seal - polar bear |
| C. | Fish - diatoms - seal - zooplankton - polar bear |
| D. | Diatoms - fish - polar bear - seal - zoo - plankton |
| Answer» C. Fish - diatoms - seal - zooplankton - polar bear | |
| 68. |
Storage of energy in an ecosystem is shown by the amount of living material present in both plants and animals. This is called |
| A. | Trophic level |
| B. | Standing crop |
| C. | Food chain |
| D. | Food web |
| Answer» C. Food chain | |
| 69. |
Which one of the following tree is considered to be an environmental hazard? |
| A. | Babbol |
| B. | Amaltas |
| C. | Neem |
| D. | Eucalyptus |
| Answer» E. | |
| 70. |
Which one of the following is the most |
| A. | Desert |
| B. | Mountain |
| C. | Ocean |
| D. | Forest |
| Answer» D. Forest | |
| 71. |
Which one of the following ecosystems is known as the |
| A. | Selvas |
| B. | Savannah |
| C. | Prairie |
| D. | Taiga |
| Answer» C. Prairie | |
| 72. |
Solar radiation |
| A. | Carbon cycle |
| B. | Oxygen cycle |
| C. | Water cycle |
| D. | Nitrogen cycle |
| Answer» D. Nitrogen cycle | |
| 73. |
Endangered |
| A. | Dead Stock Book |
| B. | Red Data Book |
| C. | Live Stock Book |
| D. | None of these |
| Answer» C. Live Stock Book | |
| 74. |
Which one the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms ? |
| A. | Ecotone |
| B. | Ecological niche |
| C. | Habitat |
| D. | Home range |
| Answer» C. Habitat | |
| 75. |
The endangered Ridley turtles have the world's largest aggregation |
| A. | Gahirmatha |
| B. | Sagarmatha |
| C. | Lakshadweep islands |
| D. | Andaman and Nicobar group of islands |
| Answer» B. Sagarmatha | |
| 76. |
The wave length of electromagnetic wave of the spectrum is expressed in the unit |
| A. | Lengley |
| B. | Hertz |
| C. | Photons |
| D. | Angstorm |
| Answer» E. | |
| 77. |
Consider the following statements regarding human geography |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 3 |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 78. |
World Environment Day |
| A. | November 19 |
| B. | November 14 |
| C. | October 2 |
| D. | June 5 |
| Answer» E. | |
| 79. |
Sustainable development is a case of intergenerational sensibility in respect of use of |
| A. | natural resources |
| B. | material resources |
| C. | industrial resources |
| D. | social resources |
| Answer» B. material resources | |
| 80. |
Which of the following is not a |
| A. | Carbon dioxide |
| B. | Methane |
| C. | Nitrous oxide |
| D. | Nitrogen |
| Answer» E. | |
| 81. |
As an |
| A. | For nutrient recovery and recycling |
| B. | For releasing heavy metals through absorption by plants. |
| C. | In reducing siltation of rivers by retaining sediments |
| D. | All the above |
| Answer» E. | |
| 82. |
Biotic component of the environment does not include |
| A. | soil system |
| B. | animal system |
| C. | micro-organism system |
| D. | plant system |
| Answer» B. animal system | |
| 83. |
Mangrove forests in Asia are |
| A. | India |
| B. | Malaysia |
| C. | Indonesia |
| D. | Philippines |
| Answer» D. Philippines | |
| 84. |
Higher order biotic level |
| A. | populations |
| B. | cells |
| C. | genes |
| D. | tissues |
| Answer» B. cells | |
| 85. |
Which one of the following is a part of |
| A. | Carbon cycle |
| B. | Hydrogen cycle |
| C. | Hydrological cycle |
| D. | Nitrogen cycle |
| Answer» D. Nitrogen cycle | |
| 86. |
Which one of the following is designated as the |
| A. | Mangrove forests |
| B. | Mid-latitude mixed forests |
| C. | Taiga forests |
| D. | Equatorial evergreen forests |
| Answer» E. | |
| 87. |
Vermicompost |
| A. | inorganic fertilizer |
| B. | tixic substance |
| C. | organic biofertilizer |
| D. | synthesis fertilizer |
| Answer» D. synthesis fertilizer | |
| 88. |
Environmental Kuznets |
| A. | a semi-circle curve suggesting increase in per-capita income increases the pollution |
| B. | a U-shaped curve suggesting the level of development and carbon emission |
| C. | suggest a U-shaped relationship between the carbon emission and Ozone layer depletion |
| D. | suggest a bell-shaped relationship between the concentration of certain pollution emission and per-capita real GDP |
| Answer» E. | |
| 89. |
'Rally for Valley' |
| A. | environmental degradation |
| B. | biodiversity |
| C. | resettlement of displaced people |
| D. | loss of agricultural land |
| Answer» B. biodiversity | |
| 90. |
Which among the following statement about biofertilizers are correct? |
| A. | 1 and 4 |
| B. | 1, 2 and 4 |
| C. | 2 and 3 |
| D. | 1, 2, 3 and 4 |
| Answer» B. 1, 2 and 4 | |
| 91. |
Which one of the following is not helpful in maintaining |
| A. | Ecosystem complexity |
| B. | Ecosystem diversity |
| C. | Ecosystem uniformity |
| D. | Homeostatic mechanism |
| Answer» D. Homeostatic mechanism | |
| 92. |
As an ecosystem, |
| A. | For nutreint recovery and cycling |
| B. | For releasing heavy metals through absorption by plants |
| C. | In reducing saltation of rivers by retaining sediments |
| D. | All of the above |
| Answer» D. All of the above | |
| 93. |
Urbanisation and Industrialisation |
| A. | Sustainable development |
| B. | Environment and Ecology |
| C. | Preservation of biodiversity |
| D. | All of the above |
| Answer» E. | |
| 94. |
Rajiv Gandhi Environment Award |
| A. | Afforestation and conservation of wastelands |
| B. | Clean technology and development |
| C. | Wild life conservation |
| D. | Hindi books on environment |
| Answer» C. Wild life conservation | |
| 95. |
Which one of the following is not included under the basic component of the environment ? |
| A. | Abiotic component |
| B. | Biotic component |
| C. | Energy component |
| D. | Spatial component |
| Answer» E. | |
| 96. |
Human Geography is 'Human Ecology' |
| A. | Barrow |
| B. | Huntington |
| C. | Ratzel |
| D. | Vidal de la Blache |
| Answer» B. Huntington | |
| 97. |
Among the following greenhouse gases, the emission of which one of the following is entirely anthropogenic ? |
| A. | Chlorogluorocarbons |
| B. | Methane |
| C. | Nitrous oxide |
| D. | Hydrogen sulphide |
| Answer» B. Methane | |
| 98. |
Among the following climatic factors, which one has the least effect upon terrestrial ecosystem ? |
| A. | Temperature variation |
| B. | Wind |
| C. | Conditions of sunlight |
| D. | Avaiability of water |
| Answer» C. Conditions of sunlight | |
| 99. |
The flow of energy |
| A. | Decrease with each successive tropic level |
| B. | Increase with each successive tropic level |
| C. | Remains constant with each successive tropic level. |
| D. | First increase and then decrease with each successive tropic level |
| Answer» B. Increase with each successive tropic level | |
| 100. |
Directions : |
| A. | Both (A) and (R) are individually true and (R) is the correct explanation of (A) |
| B. | Both (A) and (R) are individually true but (R) is not the correct explanation of (A) |
| C. | (A) is true but (R) is false |
| D. | (A) is false but (R) is true |
| Answer» B. Both (A) and (R) are individually true but (R) is not the correct explanation of (A) | |