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Home » UPSC Prelims Quiz » UPSC Prelims Quiz: July 19, 2025

UPSC Prelims Quiz: July 19, 2025

Q1. With reference to the recent World Bank classification based on the Gini Index, which of the following statements is/are correct?

1. A country with a Gini Index of 25.5 is classified under the “low inequality” category.
2. India and Finland currently fall in the same inequality category despite differences in their welfare spending patterns.
3. A decrease in the Gini Index necessarily implies a fall in absolute poverty levels.
Select the correct answer using the code given below:

Explanation:

Statement 1 is incorrect: India’s Gini Index is 25.5, which puts it in the “moderately low” inequality category (25–30 range), not the “low inequality” group (below 25).

Statement 2 is correct: Countries like India and Finland are both in the “moderately low” inequality category, even though Finland has a robust welfare state and India does not.

Statement 3 is incorrect: A lower Gini Index indicates more equal distribution, but does not necessarily mean absolute poverty has declined. A country can be more equal but still poor.

Answer: (a) 2 only
Q2. Which of the following best explains why a country with a relatively low Gini Index may still face significant economic challenges?
(a) A low Gini Index always indicates low GDP growth, leading to economic stagnation.
(b) Low inequality may coincide with widespread poverty and limited wealth generation.
(c) Countries with low Gini Index scores tend to experience higher inflation due to redistribution.
(d) Low inequality correlates with political instability in democratic systems.

Explanation:

The Gini Index measures inequality, not absolute prosperity. A low Gini value may reflect that everyone earns roughly the same, but if national income is low, that equality may be in shared poverty.

Option (a) is incorrect: Low Gini Index doesn’t imply low GDP growth.

Option (c) is factually wrong and lacks empirical basis.

Option (d) is an overgeneralization: Low inequality often enhances political stability in democracies.

Answer: (b) Low inequality may coincide with widespread poverty and limited wealth generation

Global Inequality Rankings by Gini Index

The latest World Bank data shows a Gini Index score of 25.5 for India, placing it among the most equal nations in relative terms. This figure is notably lower than China’s 35.7 and significantly below the United States’ 41.8.

India falls into the “moderately low inequality” category, defined by Gini scores between 25 and 30. It is only a fraction away from entering the “low inequality” group, which includes countries like the Slovak Republic (24.1), Slovenia (24.3), and Belarus (24.4).

Globally, just 30 countries fall into the moderately low inequality bracket. Many of them are European nations with strong welfare systems, such as Iceland, Norway, Finland, and Belgium.

The Gini Index is a standard metric used to evaluate the distribution of income, consumption, or wealth across a population. Scores range from 0 (perfect equality) to 100 (absolute inequality). A lower score indicates a more equitable society, while a higher score reflects greater disparity.

Q3. Assertion (A):
The QUAD nations launched the ‘QUAD At Sea Ship Observer Mission’ to enhance coordinated maritime domain awareness in the Indo-Pacific region.

Reason (R):
The Wilmington Declaration adopted at the 6th QUAD Summit reaffirmed the grouping’s commitment to a free, open, inclusive, and rules-based Indo-Pacific beyond military cooperation.
Codes:
(a) Both A and R are correct, and R is the correct explanation of A.
(b) Both A and R are correct, but R is not the correct explanation of A.
(c) A is correct, but R is incorrect.
(d) A is incorrect, but R is correct.

Explanation:

Assertion (A) is correct: The QUAD At Sea Ship Observer Mission reflects an effort to deepen maritime coordination, particularly on domain awareness and joint surveillance, which is central to QUAD’s security agenda in the Indo-Pacific.

Reason (R) is also correct: The Wilmington Declaration (2024) reaffirms the QUAD’s broader vision of a Free, Open, Inclusive, and Rules-Based Indo-Pacific, encompassing security, technological, economic, and health cooperation—not limited to military or hard power concerns.

And R is the correct explanation of A, as the observer mission stems directly from the strategic vision laid out in the Wilmington Declaration.

Answer: (a) Both A and R are correct, and R is the correct explanation of A
Q4. Consider the following statements with reference to the Caribbean Community (CARICOM):

I. All full members of CARICOM are part of the Commonwealth of Nations.
II. At least one full member of CARICOM lies outside the Caribbean Sea region.
III. All associate members of CARICOM are non-sovereign British Overseas Territories.

How many of the above statements are correct?
(a) Only one
(b) Only two
(c) All three
(d) None

Explanation:

Statement I is incorrect: While most CARICOM full members are part of the Commonwealth, Haiti is not a member of the Commonwealth of Nations.

Statement II is correct: Belize is a full member of CARICOM, but it lies in Central America (mainland), and not within the Caribbean Sea region.

Statement III is correct: All associate members (e.g., Anguilla, Bermuda, British Virgin Islands, Cayman Islands, Turks & Caicos Islands) are British Overseas Territories and non-sovereign.

Answer: (b) Only two
Q5. Consider the following statements regarding the Caribbean Community (CARICOM):

I. At least one full member of CARICOM lies outside the Caribbean Sea region.
II. CARICOM includes at least one member state that is not a sovereign country.
III. The Treaty of Chaguaramas, which established CARICOM, was signed by independent countries.

How many of the statements given above are correct?
(a) Only one
(b) Only two
(c) All three
(d) None

Explanation:

Statement I – Correct: Guyana (in South America) and Belize (in Central America) are both full CARICOM members but are not Caribbean islands. They lie outside the Caribbean Sea region, though they are culturally and economically integrated into the Caribbean.

Statement II – Correct: Montserrat is a full member of CARICOM but is a British Overseas Territory, i.e., not a sovereign country. Hence, at least one member is not sovereign.

Statement III – Correct: The Treaty of Chaguaramas (1973) was signed by four countries — Barbados, Guyana, Jamaica, and Trinidad & Tobago — all of which had gained independence by that time.

Answer: (c) All three

Overview of CARICOM

CARICOM, or the Caribbean Community, is a regional organization that promotes political cooperation and economic integration among Caribbean nations. It was officially established on 4 July 1973 through the Treaty of Chaguaramas.

Members and Structure:

  • The organization comprises 15 full member states: Antigua and Barbuda, Bahamas, Barbados, Belize, Dominica, Grenada, Guyana, Haiti, Jamaica, Montserrat, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Suriname, and Trinidad & Tobago.
  • Among these, Montserrat is the only non-sovereign member, while the remaining 14 are independent nation-states.
  • Additionally, there are five Associate Members, all of which are British Overseas Territories: Anguilla, Bermuda, British Virgin Islands, Cayman Islands, and Turks & Caicos Islands.

Governance:

  • The Chairmanship of CARICOM rotates every six months.
  • It is held by the Head of Government of a member state, ensuring shared leadership and representation across the region.
Q6. Assertion (A): Chilika Lake is highly suitable for the conservation of Irrawaddy dolphins.

Reason (R): The lake maintains a constant salinity profile due to its stable connection with the Bay of Bengal.
(a) Both A and R are correct, and R is the correct explanation of A
(b) Both A and R are correct, but R is not the correct explanation of A
(c) A is correct, but R is incorrect
(d) A is incorrect, but R is correct

Explanation:

  • Assertion is correct: Chilika Lake supports a viable population of Irrawaddy dolphins, making it a vital conservation site. It provides shallow, protected, prey-rich waters, suitable for dolphin ecology.
  • Reason is incorrect: The salinity profile of Chilika is not constant. It fluctuates seasonally and spatially—due to northern freshwater inflows and southern marine inflows. The hydrological connection to the sea varies, affecting water characteristics and biodiversity.
Answer: (c) A is correct, but R is incorrect
Q8. With reference to the Olive Ridley turtles (Lepidochelys olivacea), consider the following statements:

1. They exhibit both solitary and mass nesting behaviour, with the Indian east coast being one of the few places where arribada occurs.
2. They are categorized as Endangered under the IUCN Red List and are known to nest in both the Bay of Bengal and the Arabian Sea coastlines of India.
3. Despite their small size, they have the widest distribution among all sea turtle species, spanning tropical and subtropical waters across the Pacific, Atlantic, and Indian Oceans.

Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 and 3 only
(c) 1 only
(d) 1, 2 and 3

Explanation:

Statement 1 is correct: Olive Ridleys display both solitary and mass nesting (arribada) behaviour. The eastern Indian coast (Odisha)—notably Gahirmatha, Rushikulya, and Devi river mouths—is one of the very few global sites where arribadas occur.

Statement 2 is incorrect: The IUCN Red List categorizes them as Vulnerable, not Endangered. While occasional nesting has been recorded along the Arabian Sea (e.g., Maharashtra, Goa, Karnataka), it is not a significant nesting zone compared to the Bay of Bengal coast. Saying they “are known to nest” on both coasts suggests equal ecological significance, which is misleading.

Statement 3 is correct: Despite being the smallest sea turtles, Olive Ridleys are the most abundant and widely distributed, found across tropical and subtropical regions of the Pacific, Indian, and Atlantic Oceans. No other sea turtle has such a widespread range.

Answer: (a) 1 and 3 only

Olive Ridley Turtles: Global Distribution and Nesting Habits

Olive ridley turtles (Lepidochelys olivacea) are the smallest and most numerous among all sea turtle species worldwide. Named for the olive-green hue of their distinctive, heart-shaped carapace, these turtles are typically found in the warm tropical waters of the Pacific, Atlantic, and Indian Oceans.

The IUCN Red List classifies them as Vulnerable, indicating a high risk of endangerment in the wild.

One of the most remarkable natural events involving this species is mass nesting, known as arribada. The Odisha coast in India—home to the Rushikulya and Gahirmatha nesting beaches—hosts the world’s largest arribada for Olive ridleys. This is followed by significant nesting events along the coasts of Mexico and Costa Rica.

Q9. With reference to the Irrawaddy dolphin (Orcaella brevirostris), consider the following statements:

1. They inhabit both freshwater river systems and brackish coastal lagoons.
2. The species is classified as Endangered under the IUCN Red List and is listed in Schedule I of India’s Wildlife (Protection) Act, 1972.
3. Chilika Lake in Odisha has emerged as the single largest habitat of Irrawaddy dolphins in the world.

Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Explanation:

Statement 1 — Correct

  • Irrawaddy dolphins are found in freshwater rivers such as the Mekong (Cambodia-Laos), Mahakam (Indonesia), and Ayeyarwady (Myanmar).
  • They also occur in brackish water ecosystems, including estuaries, deltas, and lagoons like Chilika in India.
  • Their amphibious habitat use makes them unique among cetaceans.

Statement 2 — Correct

  • The IUCN Red List categorizes Irrawaddy dolphins as Endangered, reflecting global population declines due to threats like accidental bycatch, habitat loss, and pollution.
  • India provides the species with maximum legal protection under Schedule I, recognizing its conservation priority.

Statement 3 — Correct

  • Chilika Lake, a brackish water lagoon and Ramsar Site, hosts the world’s largest known population of Irrawaddy dolphins in a single lagoon ecosystem.
Correct Answer: (d) 1, 2 and 3