Question 1

With reference to the sources of water pollution, consider the following:
1. Runoff from agricultural fields using herbicides
2. Decomposition and decay of plants and animals
3. Wastewater from textile and chemical industries
How many of the above are considered pollutants originating from human activities?

Accepted Answer

Only two. Statement 1 is correct. Chemicals used in modern agriculture, such as herbicides, are washed into water bodies and are a human-generated source of pollution. Statement 3 is correct. Industries, particularly textiles and chemicals, are identified as the most significant contributors to water pollution through the disposal of industrial wastes, which is a human activity. Statement 2 is incorrect. The decay and decomposition of plants and animals is a natural source of water pollutants, distinct from pollutants originating from human activities. Therefore, only two of the listed sources are from human activities.

Question 2

Consider the following statements regarding water pollution:
1. The primary cause of concern for water quality degradation stems from natural processes like erosion and landslides.
2. The application of inorganic fertilizers in agriculture contributes to an increased nitrate content in surface waters.
3. Cultural activities, such as religious fairs and tourism, are recognized as a source of water pollution.
How many of the above statements are correct?

Accepted Answer

Only two. Statement 1 is incorrect. While natural processes like erosion and landslides contribute pollutants, the principal cause for concern regarding water pollution stems from human (anthropogenic) activities, including industrial, agricultural, and cultural sources. Statement 2 is correct. Modern agricultural practices involve the use of inorganic fertilizers which, when washed into water bodies through runoff, directly cause an increase in the nitrate content of surface waters. Statement 3 is correct. Large-scale cultural activities such as pilgrimages, religious fairs, and tourism are significant sources of water pollution due to waste generation and disposal in or near water bodies. Since statements 2 and 3 are correct, the correct option is 'Only two'.

Question 3

Consider the following statements regarding the ‘Namami Gange Programme’:
1. The development of ‘Ganga Grams’ is planned across five states, including Uttarakhand, Bihar, and West Bengal.
2. The programme's objectives are limited to sewerage treatment, industrial effluent monitoring, and riverfront development.
3. Creating public awareness to discourage the addition of pollutants, even in the form of rituals, is a stated objective.

How many of the above statements are correct?

Accepted Answer

Only two. Statement 1 is correct. The 'Ganga Grams' component of the programme is indeed targeted for development in five states: Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, and West Bengal. Statement 2 is incorrect. The use of the phrase 'limited to' makes this statement false. While the mentioned activities are objectives, the programme also includes afforestation, river surface cleaning, development of Ganga Grams, and public awareness campaigns. Statement 3 is correct. A key objective of the programme is to create public awareness to prevent pollution from all sources, including ritualistic practices. Therefore, only two statements are correct.

Question 4

With reference to the ecological restoration case study in Daurala, consider the following interventions:
1. Construction of rainwater harvesting structures specifically to dilute groundwater contaminants post-monsoon.
2. Cleaning and desilting of the village pond with the primary aim of improving aquifer recharge.
3. Enhancement of the overhead water tank's capacity coupled with laying a new 900m pipeline for potable water.

How many of the above interventions were correctly implemented?

Accepted Answer

All three. Statement 1 is correct. Rainwater harvesting structures were constructed, and their function was to help in diluting the contaminants present in the groundwater, particularly after the monsoons. Statement 2 is correct. The village's silted pond was cleaned and desilted. This action was taken to increase its water holding capacity, thereby allowing more water to percolate and recharge the aquifers. Statement 3 is correct. The restoration efforts included augmenting the village's water supply infrastructure by enhancing the capacity of the overhead water tank and laying a 900-meter pipeline to provide the community with potable water. Therefore, all three statements are correct.

Question 5

Consider the following activities as potential objectives of the 'Namami Gange Programme':
1. Development of 'Ganga Grams' in states like Uttarakhand, UP, Bihar, Jharkhand, and West Bengal.
2. Monitoring of industrial effluents and development of sewerage treatment systems in towns.
3. Construction of large-scale multi-purpose dams to augment river flow and dilute pollutants.
4. Afforestation along the river banks to increase biodiversity and cleaning of the river surface.

How many of the above are official objectives of the programme?

Accepted Answer

Only three. Statement 1 is a correct objective; the programme includes developing ‘Ganga Grams’ in the specified states. Statement 2 is also a correct objective, covering the development of sewerage treatment systems and monitoring industrial effluents. Statement 3 is incorrect. The programme's listed objectives focus on pollution abatement, ecological restoration, and public awareness. Large-scale structural interventions like multi-purpose dams are not among the stated goals. Statement 4 is a correct objective, as the programme includes afforestation and cleaning the river surface. Therefore, statements 1, 2, and 4 are correct, making a total of three correct statements.

Question 6

With reference to the case study of ecological restoration in Daurala, consider the following statements:
1. The contamination of groundwater with heavy metals was directly attributed to untreated industrial wastewater.
2. The supply of potable water to the community was improved by enhancing the capacity of the overhead water tank and extending the pipeline network.
3. The restoration efforts involved desilting the village pond to increase its capacity for recharging aquifers.
4. The primary stated purpose of constructing rainwater harvesting structures was to dilute groundwater contaminants.

How many of the above statements are correct?

Accepted Answer

All four. Statement 1 is correct. The case study explicitly states that the reason for groundwater contamination was untreated wastewater from Daurala industries leaching into the groundwater table. Statement 2 is correct. The text mentions that the overhead water tank’s capacity was enhanced and a 900m pipeline was laid to supply potable water. Statement 3 is correct. The case study notes that the silted pond was cleaned and desilted, which paved the way for a large quantity of water to recharge the aquifers. Statement 4 is correct. The text specifies that rainwater harvesting structures helped in 'diluting the contaminants of the groundwater after the monsoons.' Since all four statements are factually correct based on the provided case study, the correct option is 'All four'.

Question 7

Consider the following statements regarding the increase in ocean noise pollution:
1. The primary data for the seminal study on increased ocean noise was derived from declassified US Navy documents.
2. The study concluded that ocean noise levels have increased approximately tenfold since the 1960s, primarily due to a higher number of ships and their increased speed.
3. The research definitively established a direct causal link between the increased noise and a significant decline in specific marine mammal populations.
How many of the statements given above are correct?

Accepted Answer

Only two. Statement 1 is correct. The text explicitly mentions that the study by the Scripps Institute of Oceanography was based on 'declassified US Navy documents'. Statement 2 is correct. The text states that ocean noise increased 'tenfold' since the 1960s and identifies the main causes as 'increased global shipping trade, a higher number of ships, and higher speed of vessels'. Statement 3 is incorrect. This is a causality reversal/overstatement trap. The text explicitly notes that the effects of this increased noise on marine life were 'still unknown' at the time of the study, not that a definitive causal link to population decline was established. Therefore, only two statements are correct.

Question 8

Consider the following pairs:
Row 1: Panchpatmalai - Noise pollution from bauxite mining
Row 2: Sumatra - Source of transboundary haze affecting Thailand
Row 3: Scripps Institute - Research on acid rain pH levels
In how many of the above rows is the given information correctly matched?

Accepted Answer

Only two rows. Row 1 is correctly matched. The text provides a figure caption, 'Fig. 9.2: Noise monitoring at Panchpatmalai Bauxite Mine', directly linking the location to noise pollution from bauxite mining. Row 2 is correctly matched. The text states that smoke from forest fires to clear land on 'Sumatra island' in Indonesia caused a state of emergency in Malaysia and 'affected Thailand'. Row 3 is incorrectly matched. This is a Terminology & Origin Swap. The text attributes the study on ocean noise (not acid rain) to the 'Scripps Institute of Oceanography'. The information on acid rain pH levels is mentioned separately in the context of urban air pollution. Therefore, only two rows are correctly matched.

Question 9

Consider the following statements regarding pollution:
1. Air pollution is identified as the world's most significant environmental health risk.
2. Urban smog, a direct consequence of atmospheric pollution, is a known cause of diseases affecting the respiratory, nervous, and circulatory systems.
3. The pH value of the first rain after the summer season in urban environments is typically higher than that of subsequent rains.
How many of the statements given above are correct?

Accepted Answer

Only two. Statement 1 is correct. Data from the World Health Organization (WHO) identifies air pollution as the world's top environmental health risk. Statement 2 is correct. Air pollution is a cause of various diseases related to the respiratory, nervous, and circulatory systems, and urban smog is a harmful result of this atmospheric pollution. Statement 3 is incorrect. Rainwater analysis in urban areas shows that the pH value of the first rain after summer is consistently lower (more acidic) than that of subsequent rains, not higher, due to the accumulation of pollutants.

Question 10

Consider the following activities:
1. Combustion of fossil fuels
2. Mechanised construction
3. Loading and unloading at a harbour
4. Mining
How many of the above are mentioned as sources of either air or noise pollution?

Accepted Answer

All four. 1. Combustion of fossil fuels is a main source of air pollution. 2. Mechanised construction is a main source of noise pollution. 3. Loading and unloading activities in harbours are a source of noise pollution from sea traffic. 4. Mining is a main source of air pollution. Therefore, all four activities are identified as sources of pollution.

Question 11

Consider the following statements regarding urban waste in India: 1. In most Indian cities and towns, more than half of the solid waste generated remains uncollected. 2. In major metropolitan cities like Mumbai and Kolkata, the collection and disposal rate of solid waste is approximately 90 percent. 3. Improper disposal of solid wastes can lead to the spread of diseases such as diphtheria, malaria, and cholera. How many of the above statements are correct?

Accepted Answer

Only two. Statement 1 is incorrect. In most Indian cities and towns, the uncollected waste accounts for 30 to 50 percent of the total generated. This range does not exceed the 'more than half' threshold (i.e., >50%). Statement 2 is correct. The collection and disposal rate in major metropolitan cities such as Mumbai, Kolkata, Chennai, and Bengaluru is approximately 90 percent. Statement 3 is correct. Solid wastes create health hazards by harboring flies and rodents, which act as carriers for diseases including typhoid, diphtheria, diarrhea, malaria, and cholera. Therefore, only two statements (2 and 3) are correct.

Question 12

Consider the following statements regarding waste disposal in urban India: Statement I: The dumping of untreated sewage and industrial waste into rivers is a significant environmental issue in urban areas. Statement II: Downstream populations face serious health problems like typhoid and diarrhea. Statement III: Industrial units primarily dispose of their solid wastes through private contractors, while household wastes are managed by municipal facilities. Which one of the following is correct in respect of the above statements?

Accepted Answer

Statements I and II are correct, and II is a direct consequence of the action described in I.. Statement I is correct as river pollution from city-based industries and untreated sewage is a major problem. Statement II is also correct, as this pollution leads to serious health problems downstream. Statement II is a direct consequence of the action in Statement I. Statement III is incorrect. It reverses the disposal mechanism. Household wastes are disposed of on public lands or by private contractors, whereas industrial solid wastes are typically collected and disposed of through public (municipal) facilities. Therefore, the relationship described in option (b) is the most accurate.

Question 13

Consider the following statements regarding urban population dynamics: 1. The majority of urban population growth in India since 1961 is attributable to rural-to-urban migration. 2. Natural population increase and reclassification of settlement areas together constitute a larger share of urban growth in India than net in-migration. 3. The projected global urban population is expected to be more than two-thirds of the total world population by 2050. How many of the above statements are correct?

Accepted Answer

Only two. Statement 1 is incorrect. The provided data indicates that rural-to-urban migration accounts for about 29% of urban growth in India post-1961, which is not a majority. The majority (about 60%) comes from natural increase and reclassification. Statement 2 is correct. Natural increase and reclassification account for about 60% of urban growth, which is significantly larger than the approximately 29% contributed by net in-migration. Statement 3 is correct. The text projects the world urban population to be 68% by 2050. Two-thirds is approximately 66.7%. Since 68% is greater than 66.7%, the statement is correct. Therefore, only two statements (2 and 3) are correct.

Question 14

Consider the following statements regarding the settlement of Dharavi:
1. The settlement originated on land reclaimed from an arm of the sea using waste materials.
2. The economic activities within Dharavi are primarily limited to the treatment of hides and tanning for local consumption.
3. The demographic composition of its inhabitants includes Scheduled Castes and poor Muslims.
How many of the statements given above are correct?

Accepted Answer

Only two. Statement 1 is correct. The settlement's origin is described as a former arm of the sea that was filled in with waste. Statement 2 is incorrect. While tanning is mentioned as an activity, the settlement is also a center for producing a wide range of high-value and export-quality goods, including delicate ceramics, exquisite embroidery, sophisticated leather goods, and high-fashion garments that are sold in wealthy domestic and international markets. Statement 3 is correct. The population that settled in the area is specified to include Scheduled Castes and poor Muslims. Since two statements (1 and 3) are correct, the correct option is (b).

Question 15

Consider the following statements regarding migration patterns in India:
Statement I: The flow of population from rural to urban areas is characterized by a leapfrogging pattern, where migrants often move directly to mega-cities.
Statement II: An unbalanced pattern of development between urban and rural areas, coupled with low job opportunities in the latter, acts as a primary driver for this migration.
Statement III: Smaller and medium-sized cities provide insufficient economic opportunities to absorb the influx of rural migrants.
Which one of the following is correct in respect of the above statements?

Accepted Answer

Statement I is a consequence of the conditions described in both Statement II and Statement III.. Statement II describes the fundamental push factors (unbalanced development, low rural opportunities) that initiate rural-urban migration. Statement III describes the specific condition in intermediate urban centers (low opportunities in smaller cities) that influences the destination choice of migrants. Statement I describes the resulting migration pattern (bypassing smaller cities for mega-cities). Therefore, the broad push factors (Statement II) and the lack of pull from intermediate cities (Statement III) together cause the specific leapfrogging migration pattern observed in Statement I. Thus, Statement I is a consequence of the conditions laid out in Statements II and III.

Question 16

Consider the following rows regarding the Dharavi slum as described in the provided case study:
Row 1: Geographic Origin -> Originally an arm of the sea, subsequently filled in with waste.
Row 2: Economic Activity -> Produces a diverse range of goods including ceramics, leather goods, and high-fashion garments.
Row 3: Social Composition -> Primarily inhabited by migrant populations including Scheduled Castes and poor Muslims.
In how many of the above rows is the information correctly matched?

Accepted Answer

All three rows. Row 1 is correctly matched. The text states, 'Dharavi was an arm of the sea, that was filled by waste...'. Row 2 is correctly matched. The text describes a wide range of economic outputs: 'From Dharavi come delicate ceramics and pottery... sophisticated leather goods, high-fashion garments...'. The statement accurately reflects this diversity. Row 3 is correctly matched. The text mentions the social composition of the inhabitants: '...people who have come to live there: Scheduled Castes and poor Muslims.' Since all three rows contain correctly matched information, the correct option is 'All three rows'.

Question 17

Consider the following statements regarding the case of the migrant worker Ramesh: 1. Ramesh's initial migration from his village was to Surat, where he was guided by a friend to learn welding skills. 2. The financial remittances sent by Ramesh were used exclusively for daily consumption and healthcare, reflecting the subsistence nature of his family's needs. 3. A key factor preventing Ramesh from relocating his family to his place of work is the temporary and transferable nature of his job. How many of the above statements are correct?

Accepted Answer

Only one. Statement 1 is incorrect. Ramesh's initial migration was to Ludhiana, where he worked in a woolen factory. He moved to Surat later to learn welding. The statement incorrectly identifies Surat as his first destination. Statement 2 is incorrect. The use of the word 'exclusively' renders the statement false. Remittances were used not only for consumption and healthcare but also for capital investments like 'agriculture, purchasing of land and building of houses'. Statement 3 is correct. The temporary and transferable nature of his job is the stated reason he cannot relocate his family. Therefore, only one statement is correct.

Question 18

With reference to the drivers and characteristics of population dynamics, consider the following statements: 1. The growth of urban populations is a result of three distinct processes: natural increase, net in-migration, and the reclassification of rural areas. 2. By the middle of the 21st century, it is projected that the proportion of the world's population living in cities will be approximately 55 per cent. 3. In the context of developing countries, unskilled migrants from rural areas frequently find employment in low-wage, informal sector jobs. How many of the above statements are correct?

Accepted Answer

Only two. Statement 1 is correct. Urban population growth is driven by three distinct factors: natural increase (births exceeding deaths), net in-migration (more people moving in than out), and the reclassification of rural areas into urban ones. Statement 2 is incorrect. The 55 per cent figure represents the *current* proportion of the world's urban population, not the projection for the middle of the 21st century. The projection for 2050 is 68 per cent. Statement 3 is correct. In developing countries, it is a common pattern for poor, semi-illiterate, and unskilled rural migrants to end up in low-wage, menial jobs within the informal urban sector. Therefore, only two statements are correct.

Question 19

Consider the following statements: Statement-I: In the context of developing countries, the rural-urban migration stream for unskilled labour is predominantly male-dominated. Statement-II: Low wages in the urban informal sector and the temporary, transferable nature of jobs make it economically unviable and impractical for migrants to relocate their entire families. Which one of the following is correct in respect of the above statements?

Accepted Answer

Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I.. Statement-I is correct. The pattern of migration in developing countries for unskilled labor shows a predominance of male migrants who move to urban centers for work, often leaving their families in rural areas. Statement-II is also correct. The economic realities in urban informal sectors frequently involve low wages insufficient to support an entire family at the destination. Additionally, the temporary and transferable nature of contract-based work creates instability, discouraging the relocation of dependents. Because these economic and logistical factors (Statement-II) directly compel male workers to leave their families behind, they are the primary cause for the resulting male-dominated migration pattern (Statement-I). Therefore, Statement-II is the correct explanation for Statement-I.

Question 20

With reference to urban population dynamics, consider the following statements: 1. By the middle of the 21st century, it is projected that more than two-thirds of the global population will reside in urban areas. 2. In India, post-1961, rural-to-urban migration has been the single largest contributor to urban population growth. 3. The growth of urban populations is exclusively driven by net in-migration and natural increase. How many of the above statements are correct?

Accepted Answer

Only one. Statement 1 is correct. The projection that 68% of the world's population will live in cities by 2050 is slightly greater than two-thirds (which is approximately 66.7%). Statement 2 is incorrect. For India post-1961, natural increase is cited as contributing around 60% of urban growth, while rural-to-urban migration contributes about 29%. Therefore, natural increase, not migration, is the largest contributor. Statement 3 is incorrect. The statement uses the word 'exclusively', which makes it false. Besides net in-migration and natural increase, urban population also grows due to the reclassification of rural areas into urban areas. Thus, only one statement is correct.

Question 21

Consider the following pairs regarding the classification of wastelands and their primary causal processes:

Row 1: Gullied/ravinous land - Primarily human-induced process.
Row 2: Waterlogged and marshy areas - Caused by both natural and human factors.
Row 3: Degraded shifting cultivation area - Primarily a natural process.

In how many of the above rows is the given information correctly matched?

Accepted Answer

Only one row. Row 1 is incorrectly matched. Gullied/ravinous land is a type of wasteland primarily caused by natural agents, not human-induced processes. Row 2 is correctly matched. The degradation of land into waterlogged and marshy areas is attributed to both natural and human factors. Row 3 is incorrectly matched. Degraded shifting cultivation area is a type of wasteland resulting from human agricultural practices, not a primarily natural process. Therefore, only one row (Row 2) is correctly matched.

Question 22

The 'Namami Gange Programme' envisages the development of 'Ganga Grams' as a key component. Consider the following states: 1. Uttarakhand 2. Bihar 3. Jharkhand 4. Odisha. In how many of the above states is the development of 'Ganga Grams' planned?

Accepted Answer

Only three. Statement 1 is correct; Uttarakhand is one of the states. Statement 2 is correct; Bihar is also included. Statement 3 is correct; Jharkhand is part of the plan. Statement 4 is incorrect; Odisha is not mentioned as one of the five states (Uttarakhand, UP, Bihar, Jharkhand, and West Bengal) where 'Ganga Grams' are to be developed. Therefore, only three of the listed states are correct.

Question 23

With reference to the Daurala case study on ecological restoration near Meerut, consider the following statements: 1. The primary environmental problem addressed was the contamination of surface water by heavy metals from industrial wastewater. 2. The initiative was a multi-stakeholder partnership explicitly based on the 'Polluter Pays' principle. 3. The long-term ecological solutions included desilting the village pond to recharge the aquifer and planting one thousand trees. How many of the above statements are correct?

Accepted Answer

Only two. Statement 1 is incorrect. The text specifies the problem was heavy metal contamination of 'groundwater', not 'surface water'. This is a critical distinction in hydrology. Statement 2 is correct. The text explicitly states the initiative was a multi-stakeholder partnership and was based on the 'Polluter Pays' principle. Statement 3 is correct. The text lists desilting the village pond for aquifer recharge and planting 1000 trees as key interventions for long-term ecological restoration. Therefore, only two statements (2 and 3) are correct.

Geographical Perspective On Selected Issues And Problems In India

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