MCQOPTIONS
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MCQOPTIONS
This section includes 1185 Mcqs, each offering curated multiple-choice questions to sharpen your UPSC IAS Exam knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
Consider the following statements about an estuary:1. An estuary is the place where the river freshwater meets with ocean water.2. This area is highly productive.3. This area is highly unproductive.Which of the above statements is/are true? |
| A. | 1 only |
| B. | 2 only |
| C. | 1 and 2 only |
| D. | 3 only |
| Answer» D. 3 only | |
| 452. |
How long biological patent remains effective in India? |
| A. | 15 years |
| B. | 10 years |
| C. | 6 years |
| D. | 20 years |
| Answer» E. | |
| 453. |
A lake in the course of a river is known as a : |
| A. | Depositional lake |
| B. | Erosional lake |
| C. | Seasonal lake |
| D. | Transient lake |
| Answer» B. Erosional lake | |
| 454. |
Ganga water pollution is mainly due to discharge of |
| A. | Agricultural runoff |
| B. | Wastes from forests |
| C. | Industrial and domestic wastewater |
| D. | Spillages from mines |
| Answer» D. Spillages from mines | |
| 455. |
In which of the following ecosystems the pyramid of biomass is inverted? |
| A. | Forest |
| B. | Grassland |
| C. | Pond |
| D. | Desert |
| Answer» D. Desert | |
| 456. |
______ are the only birds that can fly backwards. |
| A. | Common cranes |
| B. | Mallards |
| C. | Whooper swans |
| D. | Hummingbirds |
| Answer» E. | |
| 457. |
According to experts, raging forest fires that took place in Uttarakhand recently have caused the formation of ______. |
| A. | Phosphorous |
| B. | Black Carbon |
| C. | Carbon Nanotubes |
| D. | Sulphur |
| Answer» C. Carbon Nanotubes | |
| 458. |
Concentration of which of the following Green house gas is not directly influenced by human activities? |
| A. | Ozone |
| B. | Carbon dioxide |
| C. | Water Vapour |
| D. | Methane |
| Answer» D. Methane | |
| 459. |
Match the names of sanctuaries given in Column 1 with the states in which they are located given in Column 2 and provide the correct answer from the options given below:Column 1 Column 2 1. Keoladeo a. Goa 2. Pench b. Bihar 3. Udaypur c. Madhya Pradesh 4. Cotigao d. Rajasthan |
| A. | 1 - d, 2 - c, 3 - b, 4 - a |
| B. | 1 - a, 2 - d, 3 - c, 4 - b |
| C. | 1 - c, 2 - a, 3 - b, 4 - d |
| D. | 1 - b, 2 - c, 3 - d, 4 - b |
| Answer» B. 1 - a, 2 - d, 3 - c, 4 - b | |
| 460. |
Generally, environment can be classified as following categories. Which among the following is NOT a part of such category? |
| A. | Operational Environment |
| B. | Physical Environment |
| C. | Cultural Environment |
| D. | Biological Environment |
| Answer» B. Physical Environment | |
| 461. |
Other than poaching, what are the possible reasons for the decline in the population of Ganges River Dolphins?1. Construction of dams and barrages on rivers2. Increase in the population of crocodiles in rivers3. Getting trapped in fishing nets accidentally4. Use of synthetic fertilizers and other agricultural chemicals in crop-fields in the vicinity of riversSelect the correct answer using the code given below. |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 1, 3 and 4 only |
| D. | 1, 2, 3 and 4 |
| Answer» D. 1, 2, 3 and 4 | |
| 462. |
In which of the following states is the Clouded Leopard National Park situated? |
| A. | Sikkim |
| B. | Nagaland |
| C. | Meghalaya |
| D. | Tripura |
| Answer» E. | |
| 463. |
Consider the following:1. Photosynthesis2. Respiration3. Decay of organic matter4. Volcanic actionWhich of the above add carbon dioxide to the carbon cycle on Earth? |
| A. | 1 and 4 only |
| B. | 2 and 3 only |
| C. | 2, 3 and 4 only |
| D. | 1, 2, 3 and 4 |
| Answer» D. 1, 2, 3 and 4 | |
| 464. |
In which of the following states/union territories is the Mahatma Gandhi Marine National Park situated? |
| A. | Andaman and Nicobar Islands |
| B. | Gujarat |
| C. | Odisha |
| D. | Dadra and Nagar Haveli |
| Answer» B. Gujarat | |
| 465. |
Ozone gas is present in which layer of atmosphere? |
| A. | Mesosphere |
| B. | Stratosphere |
| C. | Ionosphere |
| D. | Troposphere |
| Answer» C. Ionosphere | |
| 466. |
Indian Rhinoceros is protected in |
| A. | Corbett National Park |
| B. | Kaziranga National Park |
| C. | Bandipur National Park |
| D. | Gir National Park |
| Answer» C. Bandipur National Park | |
| 467. |
Match the following: Sanctuaries DistrictsA. Khaparwasi. JhajjarB. Naharii. RewariC. Bir Shikargarhiii. PanchkulaD. Abubashahariv. Sirsa |
| A. | A - i, B - ii, C - iii, D - iv |
| B. | A - ii, B - i, C - iii, D - iv |
| C. | A - iv, B - i, C - iii, D - i |
| D. | A - ii, B - iii, C - i, D - iv |
| Answer» B. A - ii, B - i, C - iii, D - iv | |
| 468. |
In India, Project Tiger started in ________. |
| A. | 1992 |
| B. | 1979 |
| C. | 1982 |
| D. | 1973 |
| Answer» E. | |
| 469. |
In the grasslands, trees do not replace the grasses as a part of an ecological succession because of |
| A. | insects and fungi |
| B. | limited sunlight and paucity of nutrients |
| C. | water limits and fire |
| D. | None of the above |
| Answer» D. None of the above | |
| 470. |
Full form of IEEP is |
| A. | International Environmental Education Project |
| B. | International Environmental Education Programme |
| C. | Indian Environmental Education Project |
| D. | Indian Environmental Education Programme |
| Answer» C. Indian Environmental Education Project | |
| 471. |
Fine solid particles or liquid droplets suspended in air are called ______. |
| A. | Aerosol |
| B. | Emulsion |
| C. | Foam |
| D. | Gel |
| Answer» B. Emulsion | |
| 472. |
Name one fungus which affects stored food grains. |
| A. | Neurospora |
| B. | Bracket fungus |
| C. | Aspergillums |
| D. | Agaricus |
| Answer» E. | |
| 473. |
Ozone Layer is found in______? |
| A. | Exosphere |
| B. | Thermospher |
| C. | Stratosphere |
| D. | Mesosphere |
| Answer» D. Mesosphere | |
| 474. |
Bhitarkanika Wildlife Sanctuary in Odisha is a conservation site for: |
| A. | King cobra |
| B. | Blue footed booby |
| C. | Saltwater crocodile |
| D. | Indian elephant |
| Answer» D. Indian elephant | |
| 475. |
______ National Wildlife Action Plan for 2017-2031 was unveiled by India spelling out the future road map for wildlife conservation. |
| A. | First |
| B. | Second |
| C. | Third |
| D. | Fourth |
| Answer» D. Fourth | |
| 476. |
In which one of the following States is the Pakhui Wildlife Sanctuary located? |
| A. | Arunachal Pradesh |
| B. | Manipur |
| C. | Meghalaya |
| D. | Nagaland |
| Answer» B. Manipur | |
| 477. |
Biological equilibrium is the balance between : |
| A. | Producers and consumers |
| B. | Producers and nutrients |
| C. | Consumers and ecological factors |
| D. | Producers, consumers and decomposers |
| Answer» E. | |
| 478. |
In which state is Kaziranga National Park situated? |
| A. | Assam |
| B. | Madhya Pradesh |
| C. | Rajasthan |
| D. | Bihar |
| Answer» B. Madhya Pradesh | |
| 479. |
Free swimming macroscopic animals in an aquatic environment are referred to as |
| A. | Plankton |
| B. | Periphyton |
| C. | Benthos |
| D. | Nekton |
| Answer» E. | |
| 480. |
Chlorofluorocarbons which damage the ozone layer of the atmosphere are not used in which of the following? |
| A. | Refrigerator |
| B. | Air conditioner |
| C. | Aerosol spray |
| D. | None of these |
| Answer» E. | |
| 481. |
Consider the following statements:1. Most of the world's coral reefs are in tropical waters.2. More than one-third of the world's coral reefs are located in territories of Australia, Indonesia and Philippines.3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests.Which of the statements given above is/are correct? |
| A. | 1 and 2 only |
| B. | 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 482. |
In which form of energy, problem of pollution doesn’t happen? |
| A. | Coal |
| B. | Atom |
| C. | Petrol |
| D. | The solar |
| Answer» E. | |
| 483. |
Human activities that cause climate change on the earth include |
| A. | Burning of forests |
| B. | Agricultural activities |
| C. | Use of aerosol cans |
| D. | All of the above |
| Answer» E. | |
| 484. |
Ecosystem is the smallest unit of |
| A. | Ionosphere |
| B. | Lithosphere |
| C. | Biosphere |
| D. | Mesosphere |
| Answer» D. Mesosphere | |
| 485. |
One biodegradable and one non-biodegradable product respectively are |
| A. | DDD and DDT |
| B. | bone and polythene |
| C. | coal and glass |
| D. | coal and DDT |
| Answer» C. coal and glass | |
| 486. |
How many wildlife sanctuaries are there in Panchkula district? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 487. |
'BioCarbon Fund Initiative for Sustainable Forest Landscapes' is managed by the |
| A. | Asian Development Bank |
| B. | International Monetary Fund |
| C. | United Nations Environment Porgramme |
| D. | World Bank |
| Answer» E. | |
| 488. |
Most villages in India are more prone to _________ than other kinds of pollution. |
| A. | Air pollution |
| B. | Sound pollution |
| C. | Radiation pollution |
| D. | Water pollution |
| Answer» E. | |
| 489. |
In which district is the Acchnakamar sanctuary located? |
| A. | Morena |
| B. | Ratlam |
| C. | Mungeli |
| D. | Rewa |
| Answer» D. Rewa | |
| 490. |
In which of the following ecosystem, benthic zone is found? |
| A. | Fresh water ecosystem |
| B. | Salt water ecosystem |
| C. | Tundra Ecosystem |
| D. | Forest Ecosystem |
| Answer» C. Tundra Ecosystem | |
| 491. |
Khangchendzonga National Park is in _________. |
| A. | Maharashtra |
| B. | Orissa |
| C. | Rajasthan |
| D. | Sikkim |
| Answer» E. | |
| 492. |
Amit walked 5 km towards south, then he took a left turn and walked 12 km. Now which direction is he facing? |
| A. | South |
| B. | East |
| C. | North-east |
| D. | South-east |
| Answer» C. North-east | |
| 493. |
In India, pelicans breed in |
| A. | Nelapattu |
| B. | Koonthankulam |
| C. | Kokka Bellur |
| D. | All of the above |
| Answer» E. | |
| 494. |
‘Gomarda’ Wildlife Sanctuary is Situated? |
| A. | Dhamtari district |
| B. | Raipur district |
| C. | Raigarh district |
| D. | Sarguja district |
| Answer» D. Sarguja district | |
| 495. |
Biological control of mosquitoes in ponds is done by using ________. |
| A. | fishes |
| B. | dolphins |
| C. | ducks |
| D. | water snakes |
| Answer» B. dolphins | |
| 496. |
A lion is an example of: |
| A. | ambitroph |
| B. | autotroph |
| C. | heterotroph |
| D. | pseudotroph |
| Answer» D. pseudotroph | |
| 497. |
Consider the following description of houses :A. In Rajasthan, the villagers live in mud houses with roofs of thorny bushes.B. In Manali (Himachal Pradesh), houses are made on bamboo pillarsC. In Leh, two-floor houses are made of stones. The ground floor is for animals and for storing necessary things.The correct statement(s) is / are |
| A. | A and B |
| B. | B and C |
| C. | A and C |
| D. | Only C |
| Answer» D. Only C | |
| 498. |
In accordance with the Plastic Waste Management Rules, 2016, what is the minimum permissible thickness of plastic carry bags? |
| A. | 25 microns |
| B. | 20 microns |
| C. | 50 microns |
| D. | 30 microns |
| Answer» D. 30 microns | |
| 499. |
‘Project Tiger’ was started in India in |
| A. | 1972 |
| B. | 1973 |
| C. | 1981 |
| D. | 1985 |
| Answer» C. 1981 | |
| 500. |
Katarniaghat Wildlife Sanctuary is situated in which state? |
| A. | Karnataka |
| B. | Bihar |
| C. | Madhya Pradesh |
| D. | Uttar Pradesh |
| Answer» E. | |