World Economic & Physical Geography
High-Yield Fact Sheet
📊 High-Yield Data & Statistical Fact Sheet
| Cue Words | Notes |
|---|---|
| Summarize India's borders, coastline, and EEZ. | Frontiers & Maritime Zones:
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| Detail Indian forest cover, soils, and wetlands. | Ecological & Soil Statistics:
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| Summarize major geological formations and processes. | Geological Formations:
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| Summarize monsoon, climate, and seismic zones in India. | Climate & Hazards:
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| Outline demographic, mineral, and energy statistics. | Resources & Demographics:
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Physical & Industrial Geography
Global Relief, Deserts & Industrial Hubs
Global Relief, Deserts & Industrial Hubs
| Cue Words | Notes |
|---|---|
| Contrast the Alpine-Himalayan belt and the Circum-Pacific Cordillera in terms of origin and distribution. | Global Orogenic Belts:
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| Name the three major global river basins and highlight their geographical or economic significance. | Global Drainage Basins:
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| Explain how cold ocean currents influence the formation of coastal deserts, citing a specific global example. | Cold Currents & Coastal Aridity:
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| What are the Rust Belt and the Ruhr Valley, and how do they differ in geographical location and contemporary development? | Global Heavy Industrial Core Areas:
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| Explain the locational factors and characteristics of the Pearl River Delta (PRD) and Toyota City industrial clusters. | East Asian Industrial Clusters:
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| What factors have historically shaped and subsequently stagnated the Hugli Industrial Belt in India? | Hugli Industrial Belt:
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Development Models & Polar Geopolitics
World Systems, Rostow Stages & Polar Treaties
World Systems, Rostow Stages & Polar Treaties
| Cue Words | Notes |
|---|---|
| How does Immanuel Wallerstein's World Systems Theory divide the global economy? | World Systems Theory:
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| Outline the 5 linear stages of development in Rostow's model of economic growth. | Rostow's Growth Model:
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| How is climate change altering the geostrategic and resource potential of the Arctic Ocean? | Arctic Geopolitics:
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| What is the Antarctic Treaty System, and what are its primary restrictions? | Antarctic Treaty System:
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| Why is the Indo-Pacific considered a crucial maritime geostrategic realm in global trade? | Indo-Pacific Geostrategy:
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Mains Strategy: Comparative Geography
- Use global case studies (e.g., Ruhr Valley revitalization, China's PRD manufacturing clusters) to contrast and critique Indian industrial corridor development.
Mains Practice Questions
- Core-Periphery Dynamics: Explain the Core-Periphery model of economic development and its role in perpetuating global inequality.
- Arctic Geopolitics: Discuss the strategic and economic implications of melting Arctic ice sheets for global shipping and resource exploitation.- Hindu Kush-Himalayan region stretches from Afghanistan to Myanmar, holding more ice than Arctic and Antarctic
- Durand Line (2,600 km) delineated in 1893 between British India and Afghanistan by Sir Henry Mortimer Durand, stretches from Iran to China
- Bagram Airfield covers 77 sq km with 11,800 ft runway, located 50-60 km north of Kabul, Afghanistan's largest military airbase
- South China Sea contains estimated 11 billion barrels of oil and 190 tcf of natural gas
- China's nine-dash line in South China Sea exceeds UNCLOS limits, claiming 90% of the sea
- Blue Nile originates from Lake Tana in Amhara Region, Ethiopia and converges with White Nile at Khartoum, Sudan
- Sierra Leone borders Guinea (north/east), Liberia (southeast), has Atlantic coast to west with diverse topography including Mount Bintumani (11,981 ft)
- Eswatini is a landlocked country in Southern Africa surrounded by South Africa on three sides and Mozambique to east, governed by absolute monarch
- Benin bordered by Nigeria (east), Togo (west), Burkina Faso (northwest), Niger (northeast) with short Gulf of Guinea coastline
- Somaliland is self-declared sovereign state in Horn of Africa functioning as de facto independent for 30+ years, borders Djibouti, Ethiopia, Somalia
- Perito Moreno Glacier in Los Glaciares NP, Argentina (UNESCO World Heritage Site) is 20 miles long, nicknamed 'White Giant'
- Mt. Makalu (8,485 m), on the Nepal side, is the world's fifth-highest peak; the top five are Everest, K2, Kangchenjunga, Lhotse, and Makalu.
- Samjung, a Himalayan village in Nepal, has been abandoned as snow fails, rains flood, and water sources disappear; the Hindu Kush-Himalayan region holds more ice than anywhere outside the Arctic and Antarctic.
- Panbari mountain (Cho Himal), where two Italian climbers died, lies in the Peri Himal range, Gandaki Pradesh, Nepal, part of the Manaslu sub-range, just north of the Larkya La pass.
- Panbari Range is the westernmost forest range of Manas National Park (UNESCO site, Assam), habitat of the endangered Golden Langur and the Great Indian Hornbill.
- Mongla is Bangladesh's second-largest seaport, located in Bagerhat District at the confluence of the Pasur and Mongla rivers, offering India an alternate route to its landlocked northeastern states.
- Chaman border crossing connects Chaman/Quetta (Balochistan, Pakistan) with Wesh in Afghanistan's Kandahar; Spin Boldak lies in Kandahar Province near the Khyber Pakhtunkhwa border.
- Torkham border crossing connects Nangarhar province, Afghanistan, with Khyber Pakhtunkhwa, Pakistan, along the Grand Trunk Road.
- Afghanistan-Iran border is the Sistan border, a desert border drawn in 1935 by a British-Iranian commission, home to nomadic tribes.
- Afghanistan-Turkmenistan border is the Amu Darya border, formed by the Amu Darya River flowing from the Pamir Mountains to the Aral Sea.
- Afghanistan-Uzbekistan and Afghanistan-Tajikistan borders are formed by rivers flowing from the Tian Shan/Pamir mountains toward the Aral Sea and Amu Darya respectively (the Tajik stretch is called the Panj River border).
- Afghanistan-China border is the Wakhan Corridor, a narrow strip of land extending from the Pamir Mountains to the Karakoram Mountains.
- The Durand Line (1893), demarcating Afghanistan-Pakistan, stretches 2,600 km from Iran's border to China through the Karakoram range to the Registan desert, named after Sir Henry Mortimer Durand.
- The 1894-96 Afghan-British survey that demarcated the Durand Line divided Pashtun tribes, granted Balochistan to British India, and created the Wakhan corridor as a buffer between empires.
- Bagram Airfield, Afghanistan's largest military airbase, covers 77 sq km with an 11,800 ft runway, located 50-60 km north of Kabul in Parwan province; built by the Soviets in the 1950s.
- Parwan province hosts the Salang tunnel, connecting Kabul to Mazar-e-Sharif and highways to Ghazni, Kandahar, and Bamiyan.
- The 2025 Afghanistan earthquake was epicentred 22 km west-southwest of Khulm, near Mazar-i-Sharif, damaging the Blue Mosque and homes in Balkh and Samangan.
- Huajiang Grand Canyon Bridge in Guizhou, China, is the world's tallest bridge, soaring about 2,050 feet above a river and gorge, surpassing Colorado's Royal Gorge Bridge (956 feet).
- China is building the Deep-Sea All-Weather Resident Floating Research Facility, a nuclear-blast-resistant floating artificial island, off Hainan province in the South China Sea.
- Cyclone Ditwah severely impacted 22 of Sri Lanka's 25 districts.
- Dangrek mountain range separates Thailand's Khorat Plateau from the Cambodian Plain, dividing the Mekong River basin (south) from the Mun River basin (north).
- Preah Vihear Temple, an 11th-century Khmer Hindu temple atop the Dangrek mountain range, was awarded to Cambodia in a 1962 ICJ ruling though access remains disputed.
- Prasat Ta Muen Thom, a Khmer complex built by King Jayavarman VII near Thailand's Surin province and Cambodia's Oddar Meanchey province, features a sandstone shivalinga; the adjoining Prasat Ta Muen is a Mahayana Buddhist rest-site.
- Emerald Triangle is the point where Thailand, Cambodia, and Laos meet.
- Mount Lewotobi Laki-laki, a stratovolcano on Flores island in Indonesia's East Nusa Tenggara province, has erupted at least 19 times since 1675.
- Indonesia has 120 active volcanoes and sits along the Pacific 'Ring of Fire', a horseshoe-shaped series of seismic fault lines.
- Spratly Islands (South China Sea) are claimed by China, Taiwan, Vietnam, the Philippines, and Malaysia; Pratas is claimed by China and Taiwan (currently controlled by Taiwan).
- Scarborough Shoal is claimed by China, the Philippines, and Taiwan; called Huangyan Island by Beijing and Panatag Shoal/Bajo de Masinloc by Manila; China seized it in 2012.
- The 2016 Permanent Court of Arbitration ruling on the South China Sea favoured Manila but did not address sovereignty over Scarborough Shoal.
- China's 'nine-dash line' (originally an 'eleven-dash line' reduced in 1953) claims about 90% of the South China Sea, exceeding limits allowed under UNCLOS.
- The South China Sea holds an estimated 11 billion barrels of oil and 190 tcf of natural gas, and about 21% of global trade ($3.37 trillion) transited through it in 2016.
- East China Sea islands are called Senkaku (Japan, administers), Diaoyu (China), and Diaoyutai (Taiwan); China disputes Japan's 1895 acquisition of them after the Sino-Japanese War.
- Yonaguni Island, about 100 km from Taiwan, is where Japan plans to deploy a medium-range missile unit.
- Taiwan came under Japanese occupation (1895-1945) following the Treaty of Shimonoseki, returning to Chinese control after Japan's WWII defeat; it became a separate administrative entity after the Kuomintang retreat in 1949.
- Taal Volcano, south of Manila, Philippines, is a complex/compound volcano made of multiple stratovolcanoes and craters rather than one distinct dome.
- Mindanao island in the Philippines, home to Davao, has a long history of insurgencies.
- The Red Sea has 9 bordering states/territories including Egypt, Sudan, Eritrea, Djibouti, Saudi Arabia, and Yemen, with access via Israel, Jordan, and Somalia; linked to the Gulf of Aden via the Bab-el-Mandeb Strait, a key global chokepoint.
- Undersea cable systems SEA-ME-WE 4 and IMEWE in the Red Sea, recently cut, connect India to West Asia and Europe.
- Gulf of Aden is bordered by Yemen (north), Somalia and Djibouti (west), and connects the Red Sea to the Arabian Sea via the Bab-el-Mandeb Strait.
- Mukalla, Yemen, bombed by Saudi Arabia, sits on the Gulf of Aden about 480 km east of Aden.
- Nagorno-Karabakh is a mountainous, ethnic-Armenian-majority region within Azerbaijan, connected to Armenia via the 5-km Lachin Corridor; Azerbaijan regained full control via military offensive in 2023.
- Baikonur Cosmodrome in Kazakhstan, leased to Russia until 2050, was the launch site of Sputnik-1 (1957) and Vostok-1 (1961, carrying Yuri Gagarin).
- Giant sequoias, among Earth's largest and oldest living trees, grow only in California; McKinley Grove in the Sierra National Forest hosts about 200 of them.
- The Mearim River flows through Maranhao state in north Brazil into Sao Marcos Bay, known for the 'pororoca' tidal bore where Atlantic high tides push upstream against the current.
- The Bobonaza River, a tributary of the Pastaza River in eastern Ecuador's Amazon rainforest, is inhabited by the Achuar and Shuar indigenous peoples.
- Perito Moreno Glacier, 20 miles long and nicknamed the 'White Giant', lies in Los Glaciares National Park (UNESCO site) near El Calafate, Santa Cruz province, Argentina.
- Venezuela deployed 17,000 troops in Tachira State, which borders Colombia, amid tensions with the US military in the Caribbean.
- Sierra Leone, on West Africa's southwest coast bordering Guinea and Liberia, has coastal mangroves, an upland plateau, and its highest peak Mount Bintumani (Loma Mansa); rich in diamonds, gold, bauxite, and rutile.
- The Grand Ethiopian Renaissance Dam (GERD) on the Blue Nile is regarded as Africa's largest hydroelectric project.
- The Blue Nile (Abay River) originates from Lake Tana in Ethiopia's Amhara region and flows about 1,450 km through Ethiopia and Sudan to meet the White Nile at Khartoum.
- The White Nile's furthest source is often cited as the Kagera River in Burundi (Great Lakes region), flowing through Uganda and South Sudan.
- Hayli Gubbi, a shield volcano in Afar, Ethiopia, part of the Erta Ale Range, sits at the edge of the East African Rift where the African and Arabian plates are pulling apart; it erupted after 12,000 years of quiet.
- There are four main types of volcanoes: cinder cones, composite/stratovolcanoes, shield volcanoes, and lava domes, classified by how their lava flows.
- Eswatini (formerly Swaziland, renamed in 2018) is Africa's only country ruled by an absolute monarch; it is landlocked between South Africa and Mozambique.
- Lesotho is a landlocked country entirely surrounded by South Africa.
- Sudan's RSF (Rapid Support Forces) evolved from the Janjaweed militia notorious for the Darfur genocide of the 2000s, led by Mohamed Hamdan Dagolo (Hemedti).
- South Sudan seceded from Sudan in 2011, becoming Africa's newest sovereign state, after two protracted Sudanese civil wars.
- Burkina Faso, Niger, and Mali withdrew from ECOWAS in 2024; ECOWAS was established on 28 May 1975 via the Treaty of Lagos by 15 West African states (HQ Abuja); India became an Observer in 2004.
- ECOWAS deploys ECOMOG as a regional military intervention force and established a free trade area (1990) with a common external tariff (2015).
- Nigeria, Africa's most populous country, is bordered by Niger, Chad, Cameroon, and Benin, has a Gulf of Guinea coastline, and lies entirely in the Northern Hemisphere; its population is about 53% Muslim and 45% Christian.
- Lake Chad is a shallow, endorheic freshwater lake at the junction of Chad, Cameroon, Nigeria, and Niger in the Sahel; over 90% of its water comes from the Chari River and its tributary the Logone.
- Despite high evaporation, Lake Chad stays fresh because salts seep into the subterranean Bodele Depression; its surface area has stabilized since the 1990s despite earlier reports of 90% shrinkage since the 1960s.
- Benin is bordered by Nigeria (east), Togo (west), Burkina Faso (northwest), and Niger (northeast), with a short coastline on the Bight of Benin (Gulf of Guinea); the Ouemé is its longest river entirely within its borders.
- Somaliland, a self-declared sovereign state in the Horn of Africa bordering Djibouti, Ethiopia, and Somalia along the Gulf of Aden, has functioned as a de facto independent country since 1991; Israel became the first country to formally recognise it.
- Somaliland was a British protectorate (distinct from Italian Somaliland), gained independence on 26 June 1960, united with Italian Somaliland on 1 July 1960, then declared independence again in 1991.
- Russia now controls nearly 19% of internationally recognised Ukrainian territory, including over 70% of Donetsk, Zaporizhzhia, and Kherson.
- Donetsk and Luhansk together form the Donbas region, a key industrial hub holding Ukraine's largest coal reserves; Luhansk was the first Ukrainian region to come fully under Russian control since the 2014 Crimea annexation.
- Pokrovsk in eastern Donetsk region is dubbed the 'gateway to Donetsk' amid Russia's advance there.
- The Chernobyl nuclear plant's protective shield, built to contain radioactive material from the 1986 disaster, can no longer perform its safety function due to drone damage in the ongoing war.
- The Kirishi oil refinery in northwest Russia accounts for 6.4% of Russia's total refining capacity; the Bashneft-UNPZ refinery is in Ufa, Republic of Bashkortostan.
- The 2025 Russia Far East earthquake (magnitude 8.8) struck the Kamchatka Peninsula, triggering tsunami waves of 3-4 m in Kamchatka and 60 cm on Japan's Hokkaido.
- Kamchatka lies on the Circum-Pacific seismic belt (Ring of Fire), which accounts for over 80% of the world's largest earthquakes, including the largest ever recorded (magnitude 9.5, Chile, 1960) and a magnitude 9.2 quake in Alaska (1964).
- The Ring of Fire encircles almost the entire Pacific Ocean, touching the US, Mexico, Chile, Peru, New Zealand, Australia, Indonesia, Philippines, Japan, and Russia.
- The Nord Stream gas pipelines connecting Russia and Germany were damaged by undersea explosions in 2022.
- The Louvre Museum in Paris, the world's most-visited museum and home to the Mona Lisa, suffered a seven-minute heist in which France's crown jewels were stolen.
- Southern Hungary's Homokhatsag region, once an important agricultural area, has become parched and is described in some studies as semiarid.
- Mercator projection, designed in 1569 by Gerardus Mercator to help sailors navigate rhumb lines, preserves shape and direction but distorts size — Africa (30 mn sq km) appears similar to Greenland (14x smaller), and Europe looks comparable to one-third-its-size Africa.
- Mercator distortion inflates Canada, Russia, and Northern Europe while shrinking Africa, South America, and India; critics argue this shaped perceptions of global power, aiding colonial domination.
- Equal Earth projection (2018) and Gall-Peters projection preserve relative area but shapes appear curved/elongated.
- Orthographic projection shows the earth as from space, but only one hemisphere at a time.
- Flattening a sphere onto a rectangle always distorts area, shape, distance, or direction.
- The African Union endorsed the 'Correct the Map' campaign to replace the Mercator projection with alternatives like Equal Earth, addressing the symbolic marginalisation of Africa.
- The Tropic of Cancer passes through 17 countries: Mexico, Egypt, China, Myanmar, Bangladesh, India, Oman, UAE, Saudi Arabia, and others.
- The Strait of Malacca is bordered by Indonesia (Sumatra), Malaysia, and Singapore, connecting the Indian Ocean to the South China Sea.
- The Kunar River originates from glaciers in the Hindu Kush mountains and flows through Afghanistan and Pakistan.