RRB NTPC World Geography In One Shot By Akshay Sir, Key Facts & Important Topics

World Geography is one of the most scoring and high-weightage sections in the RRB NTPC exam, with questions regularly asked from physical geography, climate, continents, oceans, and environmental concepts. A strong grasp of this topic can easily secure 4–6 marks in the General Awareness section every year. 

This “RRB NTPC World Geography in One Shot by Akshay Sir” covers the most exam-relevant facts in a structured and revision-friendly way, including vegetation and forest types, major landforms, rivers, deserts, continents, atmospheric science, plate tectonics, and key global locations frequently asked in previous year papers. 

Mastering these concepts not only boosts accuracy and speed but also helps aspirants confidently tackle factual and concept-based geography questions in the RRB NTPC exam.

Also Read: 

• RRB NTPC previous year papers
• RRB NTPC Syllabus

Key Geographical Features and Regions

The Ghosikund Project is located in Maharashtra on the Wainganga River, historically connected with Indira Gandhi and initiated in 1984.

Vegetation and Forests

• Tropical deciduous forests feature trees like Teak (Sagwan) and Sheesham.

• Temperate evergreen forests are primarily found in the Eastern Ghats.

• Temperate deciduous forests are characterized by trees that shed their leaves during the dry season.

• Mediterranean vegetation thrives in climates with hot, dry summers and mild, rainy winters, producing fruits like Olive (Jaitun).

• Coniferous forests are typically found at 50 to 70 degrees latitude.

• Tundra vegetation is dominated by Moss and Lichen, lacking tall trees or dense forests.

• Savannah grasslands are common in tropical regions.

• Plants in saline environments are termed Halophytes, while vegetation in desert regions is called Mesophytes.

• Plants growing on hard rocks are known as Lithophytes.

Earth's Geology and Physical Features

• The Continental Drift theory was proposed by Alfred Wegener.

• Mount Everest is Asia's highest mountain peak, while the Tibetan Plateau is known as the "Roof of the World."

• Russia is the largest country by area in Asia, and Maldives is the smallest among common options.

• Asia's longest river is the Yangtze.

• The world's deepest oceanic trench is the Mariana Trench in the Pacific Ocean, containing Challenger Deep, Earth's deepest known point. The Java Trench is the deepest in the Indian Ocean.

• Lake Baikal is the world's deepest lake and its largest freshwater lake by volume. The Caspian Sea is the largest lake/inland sea globally. The Dead Sea is an extremely saline water body in Asia.

• Mawsynram is the wettest place in Asia.

• The Trans-Siberian Railway connects Moscow with the Russian Far East.

Continents and Regions

• France is sometimes called "Little Europe."

• Great Britain includes England, Scotland, and Wales, while the United Kingdom comprises Great Britain and Northern Ireland.

• Antwerp (Belgium) is the world's largest diamond trading center.

• Africa is known as the "Continent of Contrasts" due to its diverse geographical and climatic characteristics. All three major lines of latitude—the Equator, Tropic of Cancer, and Tropic of Capricorn—pass through Africa.

• The Nile River is the longest river in the world by length, whereas the Amazon River has the highest water volume.

• The Red Sea lies between Africa and the Arabian Peninsula, connected to the Mediterranean Sea by the Suez Canal.

• The Cape to Cairo Railway is Africa's longest railway line.

• Angel Falls in Venezuela, at 979 meters, is the world's highest waterfall.

• The Amazon River flows through Brazil.

• Ojos del Salado, bordering Chile and Argentina, is the world's highest inactive volcano.

• The Andes Mountains extend North-South, with Aconcagua (6960 meters) as its highest peak. The Llama, known as a beast of burden, is found in the Andes.

• The Pampas grasslands, known as the "heart of the country," are in Argentina. The Condor bird, the largest flying bird, is found in South America.

• Brazil leads globally in coffee production, with Santos serving as its coffee port.

• The Atacama Desert in Chile is the driest desert in the world.

• La Paz (Bolivia) is the world's highest capital city (3658 meters).

• Uruguay is the most urbanized country in South America.

• Australia is the smallest continent, with Mount Kosciuszko (2228 meters) as its highest peak and the Great Dividing Range as its major mountain range. Its aboriginal inhabitants are called Aboriginal. The Torres Strait lies between Australia and New Guinea. Australia is famous for wool (Remember "Kangaroos" and wool for jerseys). The Murray-Darling Basin is its major agricultural region.

• Guano refers to bird droppings or fertilizer.

• The Deccan Plateau is surrounded by the Eastern Ghats, Western Ghats, and Vindhya mountain ranges.

• The Colorado Plateau is primarily in Utah and Arizona.

• The Iranian Plateau is also known as the Asia Minor Plateau. The Anatolian Plateau is in Turkey. The Abyssinian Plateau spans Somalia, Ethiopia, and Djibouti. The Meseta Plateau is in Spain.

• Deserts are mainly found between 20 to 40 degrees latitude. The main cause of desert formation is descending dry air. Cold ocean currents are the primary reason for deserts on the western coasts of continents. The Sahara Desert is in the Northern Hemisphere (North Africa).

• An Archipelago is a group of islands forming a chain or collection, such as Borneo, Java, and Sumatra in the Indonesian archipelago. Manitoulin Island is in Canada, Tierra del Fuego in South America, Sicily is the largest island in the Mediterranean, and the Seychelles Islands are in the Indian Ocean. Sri Lanka is separated from India by the Palk Strait and Gulf of Mannar.

• The Ural Mountains form the boundary between Asia and Europe. The Atlas mountain range is in Africa.

• The Karnali River flows from Nepal into India. Niagara Falls drains Lake Erie into Lake Ontario on the Canada and USA border. Victoria Falls is on the Zambezi River in Africa.

Earth's Internal Structure and Geological Processes

• In science, every object in the universe made of substance is called Matter (द्रव्य) (Note: द्रव (Drav) refers to liquid).

• The Asthenosphere (दुर्बलता मंडल), a highly viscous, mechanically weak, and ductile part of Earth's upper mantle, is located below the lithosphere within the Mantle. The Mantle is the primary source of magma (Magma from the Mantle). The outermost part of the Earth is the Crust.

• Osmium is the densest substance on Earth.

• Approximately 46% of oxygen is in the Earth's crust by weight, and Aluminum is the most abundant metal in the Earth's crust.

• Asphalt is not an example of a rock; Schist, Granite, and Basalt are.

• Petrology is the science of origin, structure, and composition of rocks. Pedology is the study of soil.

• Sandstone is a sedimentary rock, Quartzite is a metamorphic rock, and Granite is an igneous rock. Rocks formed from molten magma are called igneous rocks.

• A downfold in a rock is called a syncline.

• Alfred Wegener is considered the father of Plate Tectonics.

• The Andaman and Nicobar Islands fall under Seismic Zone V. A destructive Tsunami (a Japanese term for seismic sea waves) is generally caused by an earthquake with an intensity of 7 or higher. Soil erosion is not a cause of a tsunami.

• Seismology is the study of Earth's vibrations, which generate seismic waves. S-waves (Secondary waves) exhibit transverse displacement. P-waves are often described as the most dangerous seismic waves felt on the surface.

• The Pacific Ring of Fire covers the western coasts of North and South America, is famous for earthquakes and volcanoes, and contains 75% of Earth's volcanoes.

Volcanology

• Mauna Loa (Hawaii) is a dormant volcano. Barren Island is India's only active volcano.

• Stromboli, an active volcano, is known as the "Lighthouse of the Mediterranean Sea."

• Other volcanoes include Mount Etna and Vesuvius (Italy), and Cotopaxi (Ecuador). Mount Fuji is a volcanic mountain.

• The Tammu Massif is the largest volcano based on mass and footprint.

• The 90 East Ridge, an intra-submarine volcanic ridge, is in the Indian Ocean.

Atmospheric Science and Climate

• The atmosphere is the expanse of air around the Earth. The study of its upper layers is Aerology.

• Approximately 99% of the atmospheric mass is found up to 32 kilometers altitude.

• Nitrogen is the most abundant gas in the atmosphere. Oxygen assists in combustion, respiration, and nitrogen oxide formation. Carbon Dioxide is the primary greenhouse gas and the heaviest gas found in higher concentrations in the lower atmospheric layers. Argon constitutes 0.93% of the atmosphere, and CO2 is 0.03%.

• The ozone layer (O3), predominantly in the Stratosphere at 10 to 50 kilometers altitude, absorbs ultraviolet (UV) rays (especially UV-C). Ozone depletion increases UV radiation reaching Earth.

• The correct sequence of atmospheric layers from Earth's surface upwards is: Troposphere, Stratosphere, Mesosphere, Thermosphere (Ionosphere), Exosphere.

• The Troposphere is the lowest layer and closest to the Earth's surface, with its greatest thickness at the equator.

• The Tropopause separates the Troposphere from the Stratosphere.

• The Exosphere is the uppermost layer with the lowest atmospheric density.

• The highest concentration of water vapor is up to 8 kilometers altitude (The stratosphere, where ozone is found, is preferred for flights as most weather activities occur in the troposphere).

• Air pressure is also called atmospheric pressure. Humidity is measured using dry and wet bulb thermometers.

• Planetary winds include Trade Winds, Westerlies, and Polar Easterlies. Katabatic winds are downward-flowing winds from heights into valleys. The Chinook wind, known as the "snow eater," is associated with North America. The Doldrums are an equatorial low-pressure zone with calm winds. The symbol CT (Continental Tropical) represents an air mass over hot, dry desert regions.

• Precipitation is any form of water falling from clouds. Dew forms when moist air condenses on a cold surface.

• El Niño involves warm oceanic currents off Peru in the Pacific Ocean, causing periodic warming of water bodies.

• Western Disturbances, cyclones from the Mediterranean, cause winter rainfall in Northwest India.

• A continental climate is found in the centre of large landmasses, with a large annual temperature range and mostly summer rainfall. The Indian subcontinent generally has a tropical climate. The ITCZ (Intertropical Convergence Zone) shifts southwards during winter.

• Fani was a tropical cyclone. Hurricanes are tropical cyclones in the Northeast Pacific and North Atlantic.

Environmental Science

• The statement that fertilizers "do not pollute air and water" is incorrect, as they do pollute these resources.