GK for IB ACIO 2021, GK Notes for ACIO Exam on World Geography (Part 2)

By Parnab Mallick|Updated : January 7th, 2021

After IB ACIO GK Notes of World History, we have come with IB ACIO GK notes on World Geography. This is the part II of IB ACIO GK notes on World Geography. In this IB ACIO GK Notes Part II, we have discussed the following given topics.

After IB ACIO GK Notes of World History, we have come with IB ACIO GK notes on World Geography. This is the part II of IB ACIO GK notes on World Geography. In this IB ACIO GK Notes Part II, we have discussed the following given topics. We have already shared IB ACIO GK Notes on World Geography Part I.

The topics which will be covered in this article are:

  • Grasslands of the world
  • Winds across the world
  • Mountain Ranges of the world
  • Major Oceans of the world
  • Major Straits of the world
  • Active Volcanoes 
  • Deserts of the World
  • Marginal Seas 

Major Grasslands of the World

  • Dawns - Australia
  • Pampas- South America
  • Prairies- North America
  • Savana- Africa and Australia
  • Selvas- South America
  • Steppes- Europe and Northern Asia
  • Taiga- Europe and Asia
  • Velds- South Africa
  • Lianos- Venezuela (South America)

Different Winds and their names

Local Winds which blows in the various regions of the world are given below:

Hot Winds

  • Sirocco - Sahara Desert         
  • Leveche -Spain
  • Khamsin -Egypt
  • Harmattan -Sahara Desert
  • Santa Ana - USA
  • Zonda -  Argentina
  • Brickfielder –Australia

Cold Winds

  • Mistral - Spain and France
  • Bora - Adriatic coast
  • Pampero - Argentina
  • Buran -  Siberia

Descending Winds

  • Chinook - USA
  • Fohn - Switzerland
  • Berg - Germany
  • Norwester - New Zealand
  • Samun - Persia (Iran)
  • Nevados - Ecuador

Important Mountain ranges found in Continents

  • Antarctica- Antarctic Peninsula, Trans -Antarctic Mountains
  • Africa- Atlas, Eastern African Highlands, Ethiopian Highlands
  • Asia- Hindu Kush, Himalayas, Taurus, Elbrus, Japanese Mountains
  • Australia- MacDonnell Mountains
  • Europe- Pyrenees, Alps, Apennines, Urals, Balkan, Carpathians
  • North America- Rockies, Appalachians, Sierra Nevada
  • South America- Andes, Brazilian Highlands

Major Surface Ocean Currents

Warm Ocean Currents

  • Agulhas Current- Indian Ocean
  • Alaska Current- North Pacific Ocean
  • Benguela Current- South Atlantic Ocean
  • Brazil Current- South Atlantic Ocean
  • East Australian Current- South Pacific Ocean
  • Equitorial Current- Pacific Ocean
  • Gulf Stream- North Altantic Ocean
  • Kuroshio (Japan) Current- North Pacific Ocean
  • North Atlantic Drift- North Atlantic Ocean
  • North Pacific Drift- North Pacific Ocean

Cold Ocean Currents

  • California Current- North Pacific Ocean
  • Canaries Current- North Atlantic Ocean
  • Humboldt (Peru) Current- South Pacific Ocean
  • Labrador Current- North Atlantic Ocean
  • Benguela Current-South Atlantic Ocean (Warm/Cool)

Important straits in the world

  • Strait of Dover- It separates England and France
  • Cook Strait- It separates northern and southern New Zealand
  • Sauda Strait- It separates java and Sumatra island of Indonesia
  • Palk strait- It separates India from Sri Lanka
  • Strait of Gibraltar- It separates Europe from Africa
  • Strait of Bonifacio- It separates Sardinia island in Italy with Corsica island in France
  • Strait of Messina- It separates Italy and Sicily
  • Malacca Strait- It separates Malaysia and Indonesia
  • Davis Strait- It separates Greenland and Canada
  • Bass Strait- It separates Australia and Tasmania
  • Bering Strait- It separates Russia and America
  • Strait of Hormuz- It separates Oman and Iran
  • Taurus Strait- It separates Papua Guiana and Australia
  • Yucatan Strait- It separates Mexico and Cuba
  • Formosa Strait- It separates China and Taiwan

World's Most Active Volcanoes

  • Etna- Italy
  • Stromboli- Italy
  • Yas ur- Vanuatu
  • Ambrym- Vanuatu
  • Tinakula- Solomon Islands
  • Erta Ale- Ethiopia
  • Manam- Papua New Guinea
  • Langila- Papua New Guinea
  • Bagana- Papua New Guinea
  • Semeru- Indonesia
  • Merapi- Indonesia
  • Dukono- Indonesia
  • Agung- Indonesia
  • Sakura-jima- Japan
  • Suwanose-jima- Japan
  • Santa Maria- Guatemala
  • Pacaya- Guatemala
  • Sangay- Ecuador
  • Erebus- Antarctica
  • Piton de la Fournaise- Reunion
  • Kilauea- Hawaii

Ojos del Salado (Andes, Ecuador)- Highest Volcano in the word

Important Deserts of the World


  • Antarctic- Polar desert- Largest Desert and Cold Desert in the World


  • KaraKum- Cold desert- Central Asia
  • Kyzyl Kum- Cold desert- Kazakhstan and Uzbekistan
  • Gobi- Cold desert- Mongolia
  • Taklamakan- Cold desert- China
  • Thar-Cholistan-Subtropical- India and Pakistan
  • Arabian- Subtropical- Arabian Peninsula
  • Dasht-e Kavir- Subtropical- Central Iran
  • Dasht-e Lut-Subtropical- Southeastern Iran


  • Kalahari- Subtropical- Southern Africa
  • Namib-Cool Coastal- Southern Africa
  • Sahara- Subtropical- Northern Africa- Largest Hot Desert in the World


  • Gibson- Subtropical- Central Australia
  • Great Sandy- Subtropical- North-Western Australia
  • Great Victoria-Subtropical- Central Australia
  • Simpson- Subtropical- Central Australia
  • Tanami- Subtropical- Northern Australia

North America

  • Chihuahuan- Subtropical-North America
  • Great Basin- Cold Winter-US
  • Mojave- Subtropical-US
  • Sonoran- Subtropical- North America

South America   

  • Atacama- Cool Coastal-Chile- The Driest Desert on the Earth
  • Patagonian-Cold Winter-Southern Part of South America

Important Marginal Seas of the World Ocean

Marginal sea : It is a division of an ocean, partially enclosed by islands, or peninsulas and/or bounded by submarine ridges on the sea floor.

 Indian Ocean

  • Andaman Sea
  • Arabian Sea
  • Bay of Bengal
  • Java Sea
  • Persian Gulf
  • Red Sea

Pacific Ocean

  • Bering Sea
  • Celebes Sea
  • Coral Sea
  • East China Sea
  • Philippine Sea
  • Sea of Japan
  • South China Sea (important conflict zone)
  • Tasman Sea (between Australia and New Zealand)
  • Yellow Sea ( Korean Peninsula)

Atlantic Ocean

  • Argentine Sea
  • Caribbean Sea (Important tourist zone)
  • English Channel (Between France and U.K)
  • Gulf of Mexico
  • Hudson Bay
  • Irish Sea
  • Labrador Sea
  • Mediterranean Sea (Largest Sea)
  • North Sea
  • Norwegian Sea
  • Scotia Sea


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