World Geography PYQs – Geography, SSC & Railway

Answer: Option 2 — Over 80% of global oil trade passes through its sea lanes
About 80 per cent of the world's seaborne oil trade moves through the Indian Ocean's three great chokepoints — the Strait of Hormuz, the Strait of Malacca and Bab-el-Mandeb.
That single fact is what makes the region the energy lifeline of Asia and the focus of naval competition.
Revision note — The Indian Ocean Region
• The Indian Ocean is the third largest ocean, about 20 per cent of the Earth's water surface, and the only ocean named after a country.
• Strait of Hormuz — between Iran and Oman, links the Persian Gulf to the Gulf of Oman; the world's single most important oil chokepoint.
• Strait of Malacca — between Malaysia, Singapore and Indonesia, links the Indian Ocean to the South China Sea; the shortest route from the Gulf to East Asia.
• Bab-el-Mandeb — between Yemen and Djibouti and Eritrea, links the Red Sea to the Gulf of Aden, and so carries traffic to the Suez Canal.
• India's initiatives: IORA (1997, Mauritius), the Indian Ocean Naval Symposium (IONS, 2008), the SAGAR doctrine of 2015, and the Information Fusion Centre-IOR at Gurugram (2018).
• China's presence is described as the String of Pearls — ports such as Gwadar (Pakistan), Hambantota (Sri Lanka) and Kyaukpyu (Myanmar).
Do not mix these up
• Hormuz vs Malacca — Hormuz is the exit from the Persian Gulf; Malacca is the gateway to the Pacific and East Asia.
• IORA vs IONS — IORA (1997) is an economic grouping of Indian Ocean rim states; IONS (2008) is a forum of their navies.
Also asked from this topic: the year IORA was established (1997); the seas Bab-el-Mandeb connects (the Red Sea and the Gulf of Aden); the smallest Indian Ocean island nation (Maldives).

Answer: Option 2 — Indian Ocean sovereign states include countries from Africa, Asia, and Oceania; France and UK have territories
The Indian Ocean is ringed by states of Africa, Asia and Oceania (Australia), and both France and the United Kingdom hold territories in it.
That makes the other three statements false.
Revision note — The Indian Ocean and its states
• It is the third largest ocean (about 70.6 million sq km) and the only ocean named after a country; its deepest point is the Sunda (Java) Trench, about 7,290 m.
• Rim states span three continents — Africa (South Africa, Mozambique, Tanzania, Kenya, Somalia), Asia (India, Pakistan, Iran, Bangladesh, Myanmar, Thailand, Indonesia) and Oceania (Australia).
• Island nations in it are Sri Lanka, Maldives, Seychelles, Mauritius, Comoros and Madagascar; the Maldives (about 300 sq km) is the smallest by area.
• France holds Reunion and Mayotte, and the United Kingdom holds the British Indian Ocean Territory (Diego Garcia) — so European powers are present without being rim states.
• The Indian Ocean Rim Association (IORA) was set up in 1997 in Mauritius, with its secretariat at Ebene; India is a founding member.
• Russia does not touch the Indian Ocean — its coasts lie on the Arctic and Pacific oceans and on the Baltic, Black and Caspian seas.
Do not mix these up
• Indian Ocean rim states vs Indian Ocean island nations — the rim includes mainland countries such as Australia and South Africa; the island nations number only six.
• IORA vs IONS — IORA (1997) is the economic grouping of rim states; the Indian Ocean Naval Symposium (2008) is the naval forum.
Also asked from this topic: the year IORA was established (1997, SSC CHSL 2025); the smallest Indian Ocean island nation (Maldives, SSC CGL 2025).

Megaregionsare large networked urban areas with high population density.
Key Characteristics:
• Multiple cities connected by transport/economic networks
• Examples: BosWash (Boston-Washington), Tokyo-Osaka, Pearl River Delta
• Form through economic integration, not government relocation
Formation Factors:
• Integrated economic corridors linking cities
• High-speed transport connectivity (rail, highways)
• Shared labor markets and supply chains
• Not due to uniform geography or natural growth alone
Answer: Option 4 → They develop due to integrated economic corridors and high connectivity

Topic: Geography - Continental Elevations
Antarcticahas the highest average elevation among all continents.
Average elevation: approximately2,300 meters (7,545 feet).
This is due to the massiveice sheetcovering the continent, which is up to4 km thickin places.
The ice sheet adds significant height to the underlying landmass.
Answer: Option 1 → Antarctica

Topic: China's Population Policy
One-Child Policy (1980-2015)
Implemented to control population growth in China.
Cultural preference for male children led to:
- Sex-selective abortions
- Underreporting of female births
- Skewed gender ratio (more males than females)
Result: Significant imbalance in male-to-female ratio.
Answer: Option 3 → One-Child Policy

Topic: Tundra Vegetation and Fauna
Tundra regions are found in Arctic and Antarctic areas with extremely cold climate.
Walrus- Arctic marine mammal, lives in cold Tundra coastal regions.
Desert horned viper - Found in hot deserts (Sahara).
Jackal - Found in grasslands and savannas.
Iberian Lynx - Found in Mediterranean forests of Spain.
Answer: Option 1 → Walrus

Topic: Geography - Continents and Hemispheres
Southern Hemisphere: Below the Equator (0° latitude)
Eastern Hemisphere: East of Prime Meridian (0° longitude)
Analysis:
Africa: Crosses Equator (both hemispheres)
Europe: Northern Hemisphere only
Australia: Entirely below Equator (10°S to 44°S) and east of Prime Meridian
Asia: Crosses Equator (both hemispheres)
Answer: Option 3 → Australia

Orient Express - Trans-Continental Railway Route
The Orient Express is a historic luxury train service that connected Western Europe with Eastern Europe and the Balkans.
Original route: Paris (France) → Munich → Vienna → Budapest → Bucharest → Istanbul (Turkey).
Most of the route passes through European countries including France, Germany, Austria, Hungary, Romania, and Bulgaria.
Only a small portion extends into Asia (Istanbul, Turkey).
Answer: Option 2 → Europe

Topic: Natural Vegetation Types
Taigais the Russian term for the vast coniferous forest belt.
Found in high northern latitudes (50°-70°N) across Canada, Scandinavia, Russia.
Dominated by evergreen trees like pine, spruce, fir, larch.
Characterized by cold climate, long winters, short summers.
Answer: Option 1 → Coniferous Forests

Correct Answer: Commercial — Option (a)
Mediterranean agriculture is highly specialized COMMERCIAL farming. About Mediterranean Agriculture: Type: Highly specialized commercial farming; Location: Practiced in regions with a Mediterranean climate — Hot, dry summers and cool, wet winters; Regions: Mediterranean basin (Spain, France, Italy, Greece, Turkey), California (USA), Central Chile, Southwestern Australia, Cape region of South Africa; Climate characteristics: Dry, hot summers (XERIC) and mild, wet winters; Annual rainfall: 35-75 cm (mostly in winter); Frost-free climate; About Mediterranean Agriculture features: Highly commercial in nature — crops are grown primarily for SALE (not subsistence); Crop types: Specialized in specific crops suited to hot, dry summers: GRAPES (viticulture) — wine production; OLIVES ( oleiculture ) — olive oil; CITRUS FRUITS (oranges, lemons, etc.); FIGS, DATES, APRICOTS; WHEAT (grown in winter); Vegetables (tomatoes, peppers, onions); Mixed farming: Often combines crop farming with animal rearing (sheep, goats); It is intensive in nature — high-value crops; Economic significance: Mediterranean regions are major wine producers (Italy, France, Spain); Olive oil production (Spain, Italy, Greece); Citrus exports (California, Spain, Morocco); Key characteristics that make it 'commercial': Surplus production for market sale; High investment in technology; Irrigation systems (to overcome summer drought); Global export orientation.
Option (b) Subsistence farming — Incorrect: Mediterranean agriculture is NOT subsistence farming; subsistence farming is practiced to meet only the family's/community's own needs with little or no surplus for sale; Mediterranean agriculture is COMMERCIAL — crops like grapes, olives, and citrus are grown specifically for commercial purposes (wine-making, olive oil, export of fruits); the candidate incorrectly selected this option.
Option (c) Shifting farming — Incorrect: Mediterranean agriculture is NOT shifting farming; shifting cultivation (Jhum farming) involves clearing a patch of forest, farming for 2-3 years, then moving to another patch; Mediterranean agriculture is PERMANENT, SETTLED, COMMERCIAL farming in specific regions with Mediterranean climate; it is the opposite of shifting cultivation — it involves permanent orchards and vineyards.
Option (d) Pastoral farming — Incorrect: Mediterranean agriculture is NOT pastoral farming; pastoral farming is centered on raising livestock and animal husbandry; while Mediterranean agriculture does include some animal rearing (goats, sheep for cheese/wool), the primary and defining characteristic is the specialized cultivation of CROPS (grapes, olives, citrus) for commercial purposes; it is primarily crop-based commercial agriculture, not pastoral farming.

Correct Answer: Diamond — Option (a)
Diamonds are the most commonly and historically known 'conflict mineral' or 'blood mineral' in Africa. 'Blood Diamonds' / 'Conflict Diamonds': Diamonds mined in war zones and sold to finance armed conflict against governments are called 'blood diamonds' or 'conflict diamonds'; The term gained worldwide attention due to brutal civil wars in West Africa in the 1990s-2000s, particularly in Sierra Leone, Angola, Liberia, and the Democratic Republic of Congo (DRC); Famous conflicts financed by blood diamonds: The Revolutionary United Front (RUF) in Sierra Leone used diamond profits to fund a brutal civil war (1991-2002), committing atrocities including amputations; UNITA rebels in Angola used diamonds to fund their war; International response: The Kimberley Process Certification Scheme (KPCS) was established in 2003 to prevent conflict diamonds from entering the mainstream diamond market; Cultural awareness: The 2006 film 'Blood Diamond' (starring Leonardo DiCaprio) brought global awareness to this issue; Definition used: The UN defines conflict diamonds as 'diamonds that originate from areas controlled by forces or factions opposed to legitimate governments.'
Option (b) Gypsum — Incorrect: Gypsum is a soft sulfate mineral used in construction (plasterboard, cement); it is NOT known as a 'conflict mineral' or 'blood mineral' — gypsum is abundantly available worldwide and is not typically associated with financing armed conflict in Africa.
Option (c) Cobalt — Incorrect: While cobalt from the DRC has been associated with human rights concerns (including child labour in artisanal mining), it is not specifically called a 'blood mineral' in the traditional sense; diamonds are the primary and historically most recognized 'blood mineral' in Africa.
Option (d) Nickel — Incorrect: Nickel is not known as a 'conflict' or 'blood' mineral in Africa; nickel mining concerns are more associated with environmental issues rather than financing armed conflict; diamonds hold the distinction of being called 'blood minerals.'

Topic:Global Hydropower Capacity (IRENA 2025)
Chinaleads the world in installed hydropower capacity.
Key Facts:
• China has over 370 GW of hydropower capacity
• Home to Three Gorges Dam (world's largest power station)
• Brazil ranks 2nd, USA 3rd, Canada 4th globally
Answer: Option 3 → China

Continent: Coldest & Ice-Covered
Antarctica is Earth's southernmost continent.
98% covered by ice sheet (average thickness 1.9 km).
Coldest temperature recorded: -89.2°C.
Answer: Option 3 → Antarctica

Forest Type Identification
Key Indicators:
Trees: Spruce, Fir, Pine → Needle-leaved conifers
Animals: Lynx, Moose → Cold climate adapted
Coniferous Forests (Taiga/Boreal):
Dominated by evergreen conifers (spruce, fir, pine)
Found in cold temperate regions (Canada, Russia, Scandinavia)
Fauna includes lynx, moose, wolves, bears
Answer: Option 2 → Coniferous forests

Topic: Natural Vegetation Regions
Xerophytic vegetation characteristics:
• Long roots to reach deep water sources
• Few/no leaves to reduce water loss
• Waxy coating or needle-shaped foliage for moisture retention
Analysis of regions:
Mediterranean → Evergreen shrubs, not extreme xerophytes
Steppe grasslands → Short grasses, not scrub vegetation
British type → Deciduous forests, high rainfall
Hot desert → Extreme drought, xerophytic scrub (cacti, thorny bushes)
Hot desertslike Sahara have extreme aridity requiring maximum drought resistance adaptations.
Answer: Option 4 → Hot desert (Sahara type) region

Correct Answer: Egypt — Option (d)
The Philadelphi Corridor (also called the Philadelphia Route or Salah al-Din Corridor) is a narrow strip of land approximately 14 km long and 100 metres wide along the southern border between the Gaza Strip and Egypt (specifically bordering the Sinai Peninsula). It gained significant international attention during the Israel-Hamas conflict (2023–2025) as a critical route that was reportedly used for smuggling weapons and supplies into Gaza through tunnels. Control over this corridor became a key issue in ceasefire negotiations between Israel and Hamas, with Israel insisting on maintaining control of the corridor.
Option (a) Iran — Incorrect: Iran does not share a border with Gaza; the Philadelphi Corridor is on the Gaza-Egypt border.
Option (b) Turkey — Incorrect: Turkey does not share a border with Gaza; it is in Anatolia, far from the Gaza Strip.
Option (c) UAE — Incorrect: UAE is in the Arabian Peninsula; it does not share a border with Gaza. The Philadelphi Corridor borders Egypt.

Topic:Population Density(Population per sq km)
Russia:~9 people/km² (largest area, sparse population)
India:~464 people/km² (high population, moderate area)
Australia:~3 people/km² (large area, low population)
Canada:~4 people/km² (second largest area, low population)
India has significantly higher population density among given options.
Answer: Option 2 → India

Tibetan Plateau - Natural Vegetation
Location: High-altitude plateau in Central Asia
Average elevation: Over 4,500 meters above sea level
Alpine Tundra characteristics:
Found at high altitudes above tree line
Low-growing vegetation, mosses, lichens, grasses
Extreme cold, low oxygen, strong winds
Tibetan Plateau exhibits typical alpine tundra vegetation
due to its extreme elevation and harsh climate
Answer: Option 3 → Alpine Tundra

Topic: World Population Density 2024
South-Central Asia includes India, Pakistan, Bangladesh, Sri Lanka, Nepal, Bhutan, Afghanistan, and Maldives.
This region has thehighest population densityglobally due to countries like Bangladesh (~1,265 people/km²) and India (~464 people/km²).
Other regions have lower densities: Western Europe (~180/km²), Central Africa (~50/km²), North America (~22/km²).
Answer: Option 4 → South-Central Asia

Trans-Siberian Railway
World's longest railway line connecting European Russia to the Pacific Coast.
Route:Moscow (west) → Vladivostok (east)
Length: ~9,289 km across Russia
Eastern terminus:Vladivostok(Pacific port city)
Note: Question mentions St. Petersburg, but actual western terminus is Moscow.
Answer: Option 4 → Vladivostok

Topic: Youngest Country by Median Age (2024)
Median Age Comparison:
Niger: 14.8 years (lowest)
Palestine: ~21 years
Iraq: ~21 years
Afghanistan: ~18 years
Key Fact:
Niger has the world's youngest population with median age of 14.8 years.
High birth rate and young demographic structure.
Answer: Option 3 → Niger

Topic: Senkaku Islands Dispute
Key Facts:
1. Senkaku Islands (called Diaoyu in China) are located in East China Sea.
2.Administered by Japansince 1895, part of Okinawa Prefecture.
3. Claimed by China, Taiwan, but underJapanese control.
4. Recent news: China Coast Guard patrols to assert territorial claims.
Answer: Option 3 → Japan

Key Projection:Sub-Saharan Africa expected to account for more than half of global population growth by 2050.
Reasons:High fertility rates (4-5 children per woman), declining mortality, young population structure.
Impact:Population projected to double from ~1 billion (2019) to ~2 billion+ by 2050.
Other regions show declining or stable growth rates.
Answer: Option 4 → Sub Saharan Africa

Topic: International Waterways
TheSuez Canalconnects the Mediterranean Sea with the Red Sea.
Located in Egypt, it provides the shortest maritime route between Europe and Asia.
Opened in 1869, it eliminates the need to navigate around Africa.
Handles approximately 12% of global trade volume.
Answer: Option 4 → Suez Canal

Taiga is the world's largest terrestrial biome.
Also calledBoreal ForestorConiferous Forest.
Located in subarctic regions (50°-70°N latitude).
Dominated by coniferous trees like pine, spruce, fir.
Found in Canada, Russia, Scandinavia, Alaska.
Answer: Option 2 → Coniferous Forests Region

Amazon Basin Facts:
• Located in South America, covers ~7 million km²
• Contains over 10% of Earth's known species
• Home to 390 billion trees, 16,000 tree species
• Houses unique endemic species found nowhere else
Other basins have lower biodiversity compared to Amazon.
Answer: Option 2 → Amazon Basin

Manila Hemp (Abaca)
Manila hemp is extracted fromAbaca plant(Musa textilis).
It is native to thePhilippinesand named after Manila, the capital city.
Used for making ropes, twines, and specialty papers due to its strength.
Answer: Option 2 → Philippines

The Equator (0° latitude) passes through:
• South America — Ecuador, Colombia, Brazil.
• Africa — Gabon, Congo, DRC, Kenya, Somalia.
• Asia — Indonesia (major landmass of Asia in equatorial region).
NOT crossed by Equator: EUROPE
Europe is entirely in the Northern Hemisphere (above ~35°N latitude).
Answer: Option 2 → Europe

Correct Answer: Germany
The Ruhr coalfield is located in the Ruhr Valley in the state of North Rhine-Westphalia, Germany. It was historically Europe's most important industrial region, producing vast quantities of coal and steel.
Why other options are wrong:
China - Has its own major coalfields (Shanxi, Inner Mongolia).
Russia - Has the Kuznetsk (Kuzbass) coalfield.
France - Has the Nord-Pas-de-Calais coalfield.

The correct answer is (a) Laos.
Laos (Lao PDR) is a landlocked country in Southeast Asia, surrounded entirely by China (north), Vietnam (east), Cambodia (south), Thailand (west), and Myanmar (northwest). It has no access to the sea, making it one of the two landlocked countries in Southeast Asia (the other being Mongolia in East Asia).
(b) Thailand: Has an extensive coastline on the Gulf of Thailand (east) and the Andaman Sea (west via the Malay Peninsula); not landlocked.
(c) Vietnam: Has a long coastline along the South China Sea; not landlocked.
(d) Cambodia: Has a coastline on the Gulf of Thailand; not landlocked.

The correct answer is (a) Red Sea.
The Suez Canal (opened in 1869) is a man-made waterway in Egypt that connects the Mediterranean Sea (at Port Said) with the Red Sea (at Suez/Port Tewfik), providing a direct shipping route between Europe and Asia without circumnavigating Africa. It dramatically shortens the voyage between the Atlantic/Mediterranean and the Indian Ocean.
(b) Black Sea: Located north of Turkey and south of Ukraine/Russia; connected to the Mediterranean through the Bosphorus and Dardanelles straits; not connected by the Suez Canal.
(c) Caspian Sea: A landlocked sea/lake; it has no connection to any ocean; not linked to the Suez Canal.
(d) Dead Sea: A landlocked salt lake between Israel and Jordan; has no outlet to any ocean; not connected by the Suez Canal.

The correct answer is (c) Maldives.
The Maldives is the southernmost SAARC member country, located in the Indian Ocean at approximately 1-7°N latitude — very close to the equator. Being an archipelago in the central Indian Ocean, it is the closest to the equator among all SAARC nations.
(a) India: Its southernmost point (Indira Point) is at ~6.7°N in the Andaman & Nicobar Islands, but the main territory is farther north.
(b) Sri Lanka: Located at approximately 6-9°N; closer to the equator than mainland India but farther than the Maldives.
(d) Afghanistan: A landlocked country in Central/South Asia; far from the equator and the Indian Ocean.

The correct answer is (c) Gulf of Aden.
The Strait of Bab-el-Mandeb ('Gate of Tears') is a narrow strait separating the Arabian Peninsula (Yemen) from the Horn of Africa (Djibouti/Eritrea). It connects the Red Sea (to the north) with the Gulf of Aden (to the south). It is one of the world's most critical maritime chokepoints for oil tankers and cargo ships heading toward the Suez Canal.
(a) Mediterranean Sea: The Suez Canal connects the Red Sea to the Mediterranean Sea; not Bab-el-Mandeb.
(b) Persian Gulf: The Strait of Hormuz connects the Persian Gulf to the Gulf of Oman and Arabian Sea; not Bab-el-Mandeb.
(d) Arabian Sea: The Gulf of Aden leads to the Arabian Sea, so ships pass through Bab-el-Mandeb → Gulf of Aden → Arabian Sea; but the direct connection is to the Gulf of Aden, not directly to the Arabian Sea.

The Karakoram Highway (KKH) connects Abbottabad/Hasan Abdal in Pakistan with Kashgar in China's Xinjiang province, passing through the Karakoram and Pamir mountain ranges. At elevations reaching 4,693 metres, it is considered the highest paved international road in the world. It passes through Pakistan-administered Gilgit-Baltistan and is part of the China-Pakistan Economic Corridor (CPEC).
(a) Incorrect: Iran is to Pakistan's west; the Karakoram Highway goes northeast to China.
(b) Incorrect: Afghanistan borders Pakistan's northwest; Karakoram Highway connects to China, not Afghanistan.
(d) Incorrect: Kazakhstan does not share a direct border with Pakistan; the highway connects Pakistan to China.

The correct answer is Brazil (Option 2).
Brazil is by far the world's largest producer of coffee and is also a founding member of BRICS. Brazil produces approximately one-third of the world's coffee, primarily in the southeastern states of Minas Gerais, São Paulo, Espírito Santo, and Bahia. Brazilian coffee includes both Arabica and Robusta varieties.
Option 1 - India: India is a coffee producer (primarily in Karnataka, Kerala, and Tamil Nadu) but is not the largest producer among BRICS countries; Brazil far exceeds India's output.
Option 3 - Russia: Russia's climate is too cold for coffee cultivation; it is a major coffee-consuming nation but not a producer.
Option 4 - South Africa: South Africa has a limited coffee production history; it is not a significant coffee producer compared to Brazil.

The correct answer is Russia (Option 2).
Among BRICS countries (Brazil, Russia, India, China, South Africa — and new members), Russia is by far the largest exporter of oil. Russia is one of the world's top three oil producers alongside the United States and Saudi Arabia. It exports oil to Europe, China, India, and other countries through pipelines and tankers.
Option 1 - Brazil: Brazil is a significant oil producer and a net exporter, but its export volumes are far lower than Russia's.
Option 3 - India: India is primarily a major oil importer, not an exporter; it imports about 85% of its crude oil requirements.
Option 4 - South Africa: South Africa has very limited oil production and is not a significant oil exporter.

Russia has the longest coastline among BRICS nations (and one of the longest in the world).
Brazil, China and South Africa have much shorter coastlines.
Hence the answer is Russia.

Maldives, with about 300 sq km, is the smallest by area among these.
Seychelles is about 459 sq km, Mauritius about 2,040 sq km, and Sri Lanka about 65,610 sq km.
Hence Maldives is the smallest.

The Suez Canal connects the Mediterranean Sea to the Red Sea, which opens into the Indian Ocean — making it the key trade route linking Europe and Asia through the Indian Ocean.
Panama Canal links the Atlantic and Pacific Oceans.
Bering Strait is between the Arctic and Pacific.
Drake Passage lies between South America and Antarctica.
Hence, Suez Canal is correct.

Correct Answer: Option 4 – Russia
Russia is the world's largest country by land area (approximately 17.1 million sq km), making it also the largest among the BRICS nations (Brazil, Russia, India, China, South Africa).
Option 1 (Brazil): ~8.5 million sq km – second largest in BRICS.
Option 2 (China): ~9.6 million sq km – third largest globally but second in BRICS after Russia and before Brazil.
Option 3 (India): ~3.3 million sq km – much smaller than Russia.

Correct Answer: Option 1 – United Kingdom and Mauritius
The Chagos Archipelago (British Indian Ocean Territory) has been a long-standing dispute between the UK and Mauritius. The UK separated the archipelago from Mauritius in 1965 before Mauritius's independence. The International Court of Justice and UN General Assembly have ruled in favour of Mauritius, and in 2024 the UK agreed in principle to transfer sovereignty.
Option 2 (India and Pakistan): Their disputes involve Kashmir, not the Chagos Archipelago.
Option 3 (United States and Cuba): The US-Cuba territorial dispute relates to Guantanamo Bay.
Option 4 (UK and France): France has no claim over the Chagos Archipelago.

Correct Answer: Option 4 – 8
South Asia comprises 8 countries: Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka. These are also the member states of SAARC (South Asian Association for Regional Cooperation).
Option 1 (5): Incorrect; several South Asian nations are excluded.
Option 2 (6): Incorrect.
Option 3 (7): Incorrect; Afghanistan is sometimes debated but is included in standard definitions of South Asia.

Correct Answer: Option 2 – Brazil
Brazil hosts approximately 60% of the Amazon Rainforest — the world's largest tropical rainforest covering about 5.5 million km² across South America. Brazil is a founding BRICS member. The Amazon is critical for global climate regulation, biodiversity (10% of all Earth's species), and the water cycle. Brazil's Amazon has faced significant deforestation pressure, making its conservation a major global environmental concern.
Option 1 (China): China's major forest biomes include temperate and subtropical forests; China does not host the Amazon.
Option 3 (Russia): Russia has the Taiga (boreal/Siberian forest) — the world's largest forest biome by area — but not the Amazon Rainforest.
Option 4 (India): India has tropical forests in the Western Ghats, Northeast India, and Andaman Islands; not the Amazon.

Correct Answer: Option 1 – Brazil
Brazil hosts approximately 60% of the Amazon Rainforest — the world's largest tropical rainforest (~5.5 million km²). The Amazon basin covers 9 countries (Brazil, Peru, Colombia, Venezuela, Ecuador, Bolivia, Guyana, Suriname, French Guiana) but Brazil has the largest share. The Amazon is critical for global climate regulation (carbon sink absorbing 2 billion tonnes of CO₂/year), biodiversity (10% of all species on Earth), oxygen production, and the water cycle. Brazil is a founding BRICS member (along with Russia, India, China, South Africa).
Option 2 (Russia): World's largest country by area; known for the Taiga (boreal forest/Siberian forests) — the world's largest forest biome — but not the Amazon.
Option 3 (India): Known for tropical forests in the Western Ghats, Northeast India, and the Andamans; not the Amazon.
Option 4 (South Africa): Characterised by savannah, bushveld, and the Karoo desert; the Amazon is in South America, not Africa.

Correct Answer: Option 2 – Roads, railways, airports, and waterways
The Trans-European Transport Network (TEN-T) is an EU policy aimed at creating a multimodal transport network across Europe. It encompasses multiple modes of transport: road networks (motorways, expressways), railway networks (high-speed and conventional), inland waterways and maritime ports, airports, and intermodal logistics hubs. TEN-T aims to connect European cities, ports, and logistics centers through integrated corridors combining all these transport modes.
Option 1 (Roads and railways only): TEN-T covers more than just roads and railways; airports and waterways are also included.
Option 3 (Railways and airports only): Roads and waterways are also part of TEN-T; this is incomplete.
Option 4 (Waterways and pipelines only): While waterways are included, pipelines are not a TEN-T transport mode; roads, railways, and airports are all included.