"People, Development and Environment" — Practice

Question 1

The definition of sustainable development as 'development that meets the needs of the present without compromising the ability of future generations to meet their own needs' originates from:
(a) The Kyoto Protocol, 1997  (b) The Brundtland Commission's 1987 report, 'Our Common Future'  (c) The Rio Earth Summit, 1992  (d) The Paris Agreement, 2015

Accepted Answer

This is the definition set out in the Brundtland Commission's 1987 report, 'Our Common Future,' and remains the most widely cited definition of sustainable development.

Answer: (b). Trap (a) and trap (d) are both real climate treaties but neither produced this specific definition. Trap (c) is a real and significant environmental summit, but it followed and built on the Brundtland Commission's earlier 1987 definition rather than originating it.

Question 2

The Human Development Index (HDI), published annually by the UNDP, combines which three dimensions into a single score?
(a) GDP growth rate, literacy rate, and forest cover  (b) Per-capita income, urbanisation rate, and internet penetration  (c) Poverty ratio, unemployment rate, and industrial output  (d) Life expectancy at birth, expected/mean years of schooling, and GNI per capita

Accepted Answer

HDI is a composite index combining life expectancy at birth (health), expected and mean years of schooling (education), and GNI per capita (living standards) — deliberately designed to measure development beyond income alone.

Answer: (d). Trap (a), trap (b), and trap (c) each combine plausible-sounding development indicators, but none matches HDI's actual three defined dimensions.

Question 3

Excess nitrogen and phosphorus from agricultural fertiliser runoff enter a lake, triggering explosive algal growth that depletes dissolved oxygen and kills fish. This process is known as:
(a) Eutrophication  (b) Desertification  (c) Bioaccumulation  (d) Acid rain

Accepted Answer

This exact chain — nutrient enrichment causing algal overgrowth and subsequent oxygen depletion — is specifically named eutrophication, a defined mechanism of water pollution.

Answer: (a). Trap (b) describes land turning to desert-like conditions, an unrelated process. Trap (c) describes the build-up of a substance in an organism's tissue over time, not this nutrient-driven lake process. Trap (d) is an air-pollution-driven phenomenon (SO2/NOx reacting with atmospheric moisture), unrelated to nutrient runoff.

Question 4

Which of the following is classified as an air pollutant, rather than a water or soil pollutant?
(a) Excess nitrate runoff from fertilisers  (b) Untreated industrial effluent discharged into a river  (c) Sulphur dioxide (SO2) released from burning fossil fuels  (d) Accumulated plastic waste degrading farmland

Accepted Answer

Sulphur dioxide, released from burning fossil fuels, is a defining air pollutant, associated with respiratory illness and acid rain.

Answer: (c). Trap (a) and trap (b) are both water pollutants entering rivers or lakes. Trap (d) is a soil pollutant degrading land fertility, not an air pollutant.

Question 5

Which of the following is a renewable energy resource?
(a) Natural gas  (b) Geothermal energy  (c) Petroleum  (d) Coal

Accepted Answer

Geothermal energy is drawn from the Earth's internal heat, which is continuously replenished on a human timescale, making it a renewable resource.

Answer: (b). Trap (a), trap (c), and trap (d) are all fossil fuels formed over geological timescales and consumed far faster than nature replaces them, making all three non-renewable.

Question 6

A coastal state builds cyclone shelters and installs an early-warning siren system years before any cyclone actually strikes. This activity belongs to which phase of the disaster management cycle?
(a) Response  (b) Recovery  (c) Rehabilitation  (d) Mitigation / Prevention

Accepted Answer

Building infrastructure and warning systems ahead of any actual event, to reduce future harm, is the defining activity of the mitigation/prevention phase, the first stage of the disaster management cycle.

Answer: (d). Trap (a) describes action taken during or immediately after an event, not years in advance. Trap (b) and trap (c) both describe post-event restoration activity, the opposite timing of what the question describes.

Question 7

India's National Disaster Management Authority (NDMA) was established under which legislation, and is chaired by whom?
(a) The Disaster Management Act, 2005; chaired by the Prime Minister  (b) The Environment Protection Act, 1986; chaired by the Home Minister  (c) The Disaster Management Act, 2005; chaired by the Home Minister  (d) An executive order with no specific legislation; chaired by the President

Accepted Answer

The NDMA was established under the Disaster Management Act, 2005, and is chaired by the Prime Minister of India, reflecting disaster management's status as a whole-of-government priority.

Answer: (a). Trap (b) names an unrelated, genuine piece of environmental legislation with the wrong chairing authority. Trap (c) gets the correct Act but the wrong chair. Trap (d) is factually wrong on both counts — a specific Act does establish the NDMA.

Question 8

A country's death rate has fallen sharply due to improved healthcare, but its birth rate remains high, producing rapid population growth. This describes which stage of the demographic transition model?
(a) Stage 1  (b) Stage 4  (c) Stage 2  (d) Stage 3

Accepted Answer

A falling death rate combined with a still-high birth rate is precisely Stage 2 of the demographic transition model, which produces the fastest population growth of the four stages.

Answer: (c). Trap (a) describes both rates being high together, producing slow growth, not this scenario. Trap (b) describes both rates being low, the opposite pattern. Trap (d) describes the birth rate itself beginning to fall, which the question explicitly rules out by stating the birth rate remains high.

Question 9

The well-documented cross-country relationship between rising female education and falling total fertility rate operates primarily through mechanisms including:
(a) Reduced government spending on family planning programmes  (b) Delayed marriage and childbearing, and greater household decision-making power  (c) Increased industrial output requiring more child labour  (d) A mandatory government-imposed limit on family size

Accepted Answer

Rising female education is linked to falling fertility through mechanisms including delayed marriage and childbearing, greater household decision-making power, and improved health-related knowledge, not through any government mandate.

Answer: (b). Trap (a) invents an unrelated funding claim. Trap (c) describes an effect that would work in the opposite direction. Trap (d) misattributes a voluntary, education-driven behavioural shift to a coercive policy the question never describes.

Question 10

Which statement correctly distinguishes the greenhouse effect from global warming?
(a) The greenhouse effect and global warming are simply two names for the same harmful process  (b) Global warming is a natural process, while the greenhouse effect is entirely human-caused  (c) The greenhouse effect only occurs in industrialised countries, while global warming is global  (d) The greenhouse effect is a natural, life-sustaining process, while global warming results from its human-driven enhancement through excess greenhouse gases

Accepted Answer

The greenhouse effect, in its natural form, keeps the planet warm enough to sustain life; global warming results specifically from human activity increasing greenhouse gas concentrations beyond natural levels, enhancing that effect.

Answer: (d). Trap (a) wrongly equates a necessary natural process with its harmful human-driven enhancement. Trap (b) exactly reverses which of the two is natural and which is human-driven. Trap (c) invents a geographic restriction that doesn't apply to either process.

Question 11

Which of the following correctly distinguishes the Kyoto Protocol from the Paris Agreement?
(a) Kyoto set legally binding emission targets only for developed countries, while Paris uses Nationally Determined Contributions set by every country  (b) Kyoto applied to every country equally, while Paris exempted developing countries entirely  (c) Kyoto and Paris are two names for the same treaty, adopted in different years  (d) Paris set binding targets only for developed countries, while Kyoto used voluntary contributions from all nations

Accepted Answer

Kyoto (1997) set legally binding emission-reduction targets specifically for developed ('Annex I') countries; Paris (2015) replaced that model with Nationally Determined Contributions, under which every country, developed and developing, sets and periodically updates its own targets.

Answer: (a). Trap (b) reverses Kyoto's actual scope. Trap (c) wrongly treats two genuinely distinct treaties as the same agreement. Trap (d) swaps the two treaties' actual structures entirely.

Question 12

Arrange the following international environmental milestones in correct chronological order: (i) Rio Earth Summit  (ii) Montreal Protocol  (iii) Paris Agreement  (iv) Stockholm Conference
(a) i, ii, iv, iii  (b) iv, i, ii, iii  (c) iv, ii, i, iii  (d) ii, iv, i, iii

Accepted Answer

The correct chronological order is Stockholm Conference (1972), Montreal Protocol (1987), Rio Earth Summit (1992), Paris Agreement (2015) — matching (iv), (ii), (i), (iii).

Answer: (c). Trap (a) places Stockholm after both Rio and Montreal, reversing its position as the earliest milestone. Trap (b) swaps the order of Rio and Montreal. Trap (d) places Montreal before Stockholm, the wrong order for those two.

Practice — "People, Development and Environment"

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