UPSC Prelims 2012
Get UPSC Prelims Previous Year Question (PYQ) Papers with detailed explanations, mindmaps, organized year-wise and subject-wise for GS.
- Environment & Ecology
Consider the following kinds of organisms :
- Bat
- Bee
- Bird
Which of the above is/are pollinating agent/agents?
View Answer for: Consider the following kinds of organisms : Bat Bee BirdWhich of the above is/are pollinating agent/agents?Consider the following kinds of organisms :
- Bat
- Bee
- Bird
Which of the above is/are pollinating agent/agents?
- Environment & Ecology
What would happen if phytoplankton of an ocean is completely destroyed for some reason?
- The ocean as a carbon sink would be adversely affected.
- The food chains in the ocean would be adversely affected.
- The density of ocean water would drastically decrease.
View Answer for: What would happen if phytoplankton of an ocean is completely destroyed for some reason? The ocean as a carbon sink would be adversely affected. The food chains in the ocean would be adversely affected. The density of ocean water would drastically decrease.What would happen if phytoplankton of an ocean is completely destroyed for some reason?
- The ocean as a carbon sink would be adversely affected.
- The food chains in the ocean would be adversely affected.
- The density of ocean water would drastically decrease.
- Environment & Ecology
Consider the following statements: Chlorofluorocarbons, known as ozone-depleting substances, are used
- in the production of plastic foams
- in the production of tubeless tyres
- in cleaning certain electronic components
- as pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
View Answer for: Consider the following statements: Chlorofluorocarbons, known as ozone-depleting substances, are used in the production of plastic foams in the production of tubeless tyres in cleaning certain electronic components as pressurizing agents in aerosol cansWhich of the statements given above is/are correct?Consider the following statements: Chlorofluorocarbons, known as ozone-depleting substances, are used
- in the production of plastic foams
- in the production of tubeless tyres
- in cleaning certain electronic components
- as pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
- Environment & Ecology
Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct?
- Coconut shells, groundnut shells and rice husk can be used in biomass gasification.
- The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only.
- The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.
View Answer for: Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct? Coconut shells, groundnut shells and rice husk can be used in biomass gasification. The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only. The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.Biomass gasification is considered to be one of the sustainable solutions to the power crisis in India. In this context, which of the following statements is/are correct?
- Coconut shells, groundnut shells and rice husk can be used in biomass gasification.
- The combustible gases generated from biomass gasification consist of hydrogen and carbon dioxide only.
- The combustible gases generated from biomass gasification can be used for direct heat generation but not in internal combustion engines.
- Environment & Ecology
The acidification of oceans is increasing. Why is this phenomenon a cause of concern?
- The growth and survival of calcareous phytoplankton will be adversely affected.
- The growth and survival of coral reefs will be adversely affected.
- The survival of some animals that have phytoplanktonic larvae will be adversely affected.
- The cloud seeding and formation of clouds will be adversely affected.
View Answer for: The acidification of oceans is increasing. Why is this phenomenon a cause of concern? The growth and survival of calcareous phytoplankton will be adversely affected. The growth and survival of coral reefs will be adversely affected. The survival of some animals that have phytoplanktonic larvae will be adversely affected. The cloud seeding and formation of clouds will be adversely affected.The acidification of oceans is increasing. Why is this phenomenon a cause of concern?
- The growth and survival of calcareous phytoplankton will be adversely affected.
- The growth and survival of coral reefs will be adversely affected.
- The survival of some animals that have phytoplanktonic larvae will be adversely affected.
- The cloud seeding and formation of clouds will be adversely affected.
- Environment & Ecology
Vultures which used to be very common in the Indian countryside some years ago are rarely seen nowadays. This is attributed to
View Answer for: Vultures which used to be very common in the Indian countryside some years ago are rarely seen nowadays. This is attributed toVultures which used to be very common in the Indian countryside some years ago are rarely seen nowadays. This is attributed to
- Environment & Ecology
The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere because it absorbs -
View Answer for: The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere because it absorbs -The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere because it absorbs -
- Environment & Ecology
Which one of the following groups of animals belongs to the category of endangered species?
View Answer for: Which one of the following groups of animals belongs to the category of endangered species?Which one of the following groups of animals belongs to the category of endangered species?
- Environment & Ecology
With reference to the wetlands of India, consider the following statements :
- The country’s total geographical area under the category of wetlands is recorded more in Gujarat as compared to other States.
- In India, the total geographical area of coastal wetlands is larger than that of wetlands.
Which of the statements given above is/are correct?
View Answer for: With reference to the wetlands of India, consider the following statements : The country’s total geographical area under the category of wetlands is recorded more in Gujarat as compared to other States. In India, the total geographical area of coastal wetlands is larger than that of wetlands.Which of the statements given above is/are correct?With reference to the wetlands of India, consider the following statements :
- The country’s total geographical area under the category of wetlands is recorded more in Gujarat as compared to other States.
- In India, the total geographical area of coastal wetlands is larger than that of wetlands.
Which of the statements given above is/are correct?
- Environment & Ecology
Which of the following can be threats to the biodiversity of a geographical area?
- Global warming
- Fragmentation of habitat
- Invasion of alien species
- Promotion of vegetarianism
View Answer for: Which of the following can be threats to the biodiversity of a geographical area? Global warming Fragmentation of habitat Invasion of alien species Promotion of vegetarianismWhich of the following can be threats to the biodiversity of a geographical area?
- Global warming
- Fragmentation of habitat
- Invasion of alien species
- Promotion of vegetarianism
- Environment & Ecology
Consider the following:
- Black-necked crane
- Cheetah
- Flying squirrel
- Snow leopard
Which of the above are naturally found in India?
View Answer for: Consider the following: Black-necked crane Cheetah Flying squirrel Snow leopardWhich of the above are naturally found in India?Consider the following:
- Black-necked crane
- Cheetah
- Flying squirrel
- Snow leopard
Which of the above are naturally found in India?
- Environment & Ecology
Consider the following agricultural practices:
- Contour bunding
- Relay cropping
- Zero Tillage
In the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil?
View Answer for: Consider the following agricultural practices: Contour bunding Relay cropping Zero TillageIn the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil?Consider the following agricultural practices:
- Contour bunding
- Relay cropping
- Zero Tillage
In the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil?
- Environment & Ecology
In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass?
View Answer for: In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass?In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass?
- Environment & Ecology
The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural. Which one of the following is supporting service?
View Answer for: The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural. Which one of the following is supporting service?The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural. Which one of the following is supporting service?
- Environment & Ecology
How does the National Biodiversity Authority (NBA) help in protecting Indian agriculture?
- NBA checks the biopiracy and protects indigenous and traditional genetic resources.
- NBA directly monitors and supervises the scientific research on genetic modification of crop plants.
- Application for Intellectual Property Rights related to genetic/biological resources cannot be made without the approval of the NBA.
View Answer for: How does the National Biodiversity Authority (NBA) help in protecting Indian agriculture? NBA checks the biopiracy and protects indigenous and traditional genetic resources. NBA directly monitors and supervises the scientific research on genetic modification of crop plants. Application for Intellectual Property Rights related to genetic/biological resources cannot be made without the approval of the NBA.How does the National Biodiversity Authority (NBA) help in protecting Indian agriculture?
- NBA checks the biopiracy and protects indigenous and traditional genetic resources.
- NBA directly monitors and supervises the scientific research on genetic modification of crop plants.
- Application for Intellectual Property Rights related to genetic/biological resources cannot be made without the approval of the NBA.
- Environment & Ecology
What is the difference between the antelopes Oryx and Chiru?
View Answer for: What is the difference between the antelopes Oryx and Chiru?What is the difference between the antelopes Oryx and Chiru?
- Environment & Ecology
Consider the following areas:
- Bandipur
- Bhitarkanika
- Manas
- Sunderbans
Which of the above are Tiger Reserves?
View Answer for: Consider the following areas: Bandipur Bhitarkanika Manas SunderbansWhich of the above are Tiger Reserves?Consider the following areas:
- Bandipur
- Bhitarkanika
- Manas
- Sunderbans
Which of the above are Tiger Reserves?
- Environment & Ecology
Government of India encourages the cultivation of ‘sea buckthorn’. What is the importance of this plant?
- It helps in controlling soil erosion and preventing desertification.
- It is a rich source of biodiesel.
- It has nutritional value and is well-adapted to live in cold areas of high altitudes.
- Its timber is of great commercial value.
View Answer for: Government of India encourages the cultivation of ‘sea buckthorn’. What is the importance of this plant? It helps in controlling soil erosion and preventing desertification. It is a rich source of biodiesel. It has nutritional value and is well-adapted to live in cold areas of high altitudes. Its timber is of great commercial value.Government of India encourages the cultivation of ‘sea buckthorn’. What is the importance of this plant?
- It helps in controlling soil erosion and preventing desertification.
- It is a rich source of biodiesel.
- It has nutritional value and is well-adapted to live in cold areas of high altitudes.
- Its timber is of great commercial value.
- Environment & Ecology
If the National Water Mission is properly and completely implemented, how will it impact the country?
- Part of the water needs of urban areas will be met through recycling of wastewater.
- The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow for the use of ocean water.
- All the rivers of Himalayan origin will be linked to the rivers of peninsular India.
- The expenses incurred by farmers for digging bore-wells and for installing motors and pump sets to draw groundwater will be completely reimbursed by the Government.
Select the correct answer using the codes given below:
View Answer for: If the National Water Mission is properly and completely implemented, how will it impact the country? Part of the water needs of urban areas will be met through recycling of wastewater. The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow for the use of ocean water. All the rivers of Himalayan origin will be linked to the rivers of peninsular India. The expenses incurred by farmers for digging bore-wells and for installing motors and pump sets to draw groundwater will be completely reimbursed by the Government.Select the correct answer using the codes given below:If the National Water Mission is properly and completely implemented, how will it impact the country?
- Part of the water needs of urban areas will be met through recycling of wastewater.
- The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow for the use of ocean water.
- All the rivers of Himalayan origin will be linked to the rivers of peninsular India.
- The expenses incurred by farmers for digging bore-wells and for installing motors and pump sets to draw groundwater will be completely reimbursed by the Government.
Select the correct answer using the codes given below:
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