3.9 World regional geography: features, resources and places notes

1. 3.9.1Major rivers of the world and cities on their banks

   The Nile is the longest river, the Amazon carries the most water, and most great cities of the world grew at river crossings, confluences or mouths; exams test river–city pairs, which sea a river drains into and which lines of latitude it crosses.

   Standard · 9 min · Full course
2. 3.9.2Lakes, waterfalls and inland seas of the world

   The Caspian is the largest lake, Superior the largest freshwater lake by area, Baikal the deepest and oldest, Victoria the largest in Africa, and Angel Falls the highest waterfall; most asked lakes were formed by rifting, glaciers or inland drainage.

   Standard · 9 min · Full course
3. 3.9.3Important straits, canals, isthmuses and channels

   A strait is a narrow natural channel joining two seas, an isthmus is a narrow land strip joining two land masses, and a canal is a man-made cut, often across an isthmus; the Suez (1869, no locks) and Panama (1914, with locks) canals are the most asked.

   Standard · 10 min · Full course
4. 3.9.4Highest peaks, major ranges and plateaus of the world

   Everest (8,848.86 m) is the highest peak, the Andes the longest continental range, and the Tibetan Plateau the highest and largest plateau; exams test each continent's highest peak, young versus old ranges and plateau types.

   Standard · 9 min · Full course
5. 3.9.5International boundary lines: Durand, McMahon, Radcliffe, 38th parallel and others

   Famous boundary lines are named after the officials who drew them (Durand, McMahon, Radcliffe, Curzon) or after the parallel they follow (38th, 49th); exams pair each line with the two countries it divides and the year.

   Standard · 9 min · Full course
6. 3.9.6World mineral and energy resources: major producers and regions

   Minerals are unevenly spread: old shields and plateaus hold metallic ores (iron, gold, copper), sedimentary basins hold coal, oil and gas, and a few countries dominate each mineral, which makes supply chains geopolitical.

   Standard · 9 min · Full course
7. 3.9.7World agriculture: major crops and leading producers

   World farming ranges from nomadic herding and shifting cultivation to mechanised grain farms and dairy belts; each type has typical regions, crops and features that exams test as match-the-following.

   Standard · 9 min · Full course
8. 3.9.8World industrial regions and major industrial cities

   Major industrial regions grew in temperate lands near coal fields and ports (NE USA, NW Europe, Japan, eastern China); newer high-technology clusters (technopoles) depend on universities and skilled people instead, and trans-continental railways and ports tie these regions to raw materials and markets.

   Standard · 9 min · Full course
9. 3.9.9World population: distribution, growth and demographic transition

   World population passed 8 billion in November 2022 and is about 8.2 billion (2025); it is very unevenly spread, grew fastest in the 20th century, and is moving through the demographic transition from high to low birth and death rates.

   Standard · 8 min · Full course
10. 3.9.10Tribes and indigenous peoples of the world

    Indigenous peoples have adapted to every harsh environment, from Arctic hunters (Inuit) and desert herders (Bedouin, Tuareg) to forest gatherers (Pygmies, San); exams pair each group with its region and way of life.

    Standard · 8 min · Full course
11. 3.9.11Places in news: West Asia, Europe and Central Asia

    "Places in news" questions ask where a place is and what lies next to it; for West Asia, Europe and Central Asia, learn the map around the Gaza–Red Sea–Hormuz arc, the Black Sea–Baltic front of the Russia–Ukraine war, and the landlocked Central Asian states.

    Standard · 9 min · Full course
12. 3.9.12Places in news: Indo-Pacific, Africa and the Americas

    For the Indo-Pacific, learn the disputed islands and the ports on India's sea lanes; for Africa, the Sahel–Sudan–Horn conflict belt and mineral corridors; for the Americas, canals, borders and the Amazon.

    Standard · 10 min · Full course

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