GK Geography

Uttarkashi is a town in Uttarakhand situated on the banks of the Bhagirathi River, which is one of the two main headstreams of the Ganga (the other being Alaknanda). The Bhagirathi originates at Gaumukh from the Gangotri Glacier and flows through Uttarkashi.

Antecedent drainage refers to a river that has maintained its course and direction despite the rise of mountain ranges around it. The Brahmaputra flows northward through the Himalayas (which rose later), meaning it predates the main Himalayan orogeny and has an antecedent drainage pattern with its watershed north of the main range.

Option (3) is not correctly matched.

The Narmada River originates in Madhya Pradesh at Amarkantak and flows west through MP before entering Gujarat, where it empties into the Arabian Sea. It flows through these two states.

Equinox occurs when the Sun is vertically above the Equator.

The Taiga (boreal forest) biome is located between the temperate grasslands to the south and the tundra to the north. This forms a natural latitudinal progression from warmer grasslands through coniferous forests to Arctic tundra. The other options pair tundra with climates not adjacent to taiga belts.

The hydrological cycle requires evaporation (liquid to gas) and condensation/precipitation (gas to liquid). Water vapor movement in the atmosphere completes the cycle by transporting evaporated water from oceans to land where it precipitates. River tides, sea flow, and groundwater movement are secondary processes, not essential cycle components.

Plantation agriculture is predominantly practiced in tropical regions due to the favorable climate conditions including adequate rainfall, warm temperatures, and long growing seasons. Tropical regions provide ideal conditions for cash crops like tea, coffee, rubber, and spices.

Statement 1: Crossing eastward across the International Date Line means you go into the previous day (repeat a day). TRUE. Statement 2: The IDL roughly divides the Pacific Ocean into two equal parts along the 180° meridian. TRUE. Statement 3: The IDL follows the 180° meridian with deviations for political boundaries. TRUE. Statement 4: Crossing westward does NOT repeat a day - you advance to the next day. FALSE. Therefore, statements 1, 2, and 3 are correct.

Laterites are soil types rich in iron and aluminium, formed in hot and wet tropical areas. Nearly all laterites are rusty-red because of iron oxides. They develop by intensive and long-lasting weathering of the underlying parent rock.

Laterite soil is formed in hot, wet tropical areas through intensive leaching - heavy rainfall washes away soluble minerals like silica and lime, leaving behind insoluble iron and aluminum oxides. This gives laterite its characteristic red/orange color. Black soil (regur) is a volcanic soil rich in clay, not formed through leaching.

The Ganges-Brahmaputra Delta (also known as the Sundarbans Delta) is the world's largest river delta, formed by the confluence of the Ganges and Brahmaputra rivers. It covers approximately 105,000 square kilometers and spans across Bangladesh and India. The Seine-Rhine forms a smaller European delta, the Danube flows into the Black Sea, and while the Nile forms a large delta, it is formed by a single river, not a pair.

Alluvial soil is primarily found in river valleys and coastal plains. Among the options, Gujarat has extensive alluvial soil in the Narmada and Tapi valleys, Kerala has coastal alluvium, and Orissa has alluvial deposits in the Mahanadi and other river deltas. Maharashtra, while having some alluvial soil along coastal areas and river valleys, is predominantly known for Deccan basalt (black cotton soil) and red soil, making it the correct answer as the exception.

Arakan Yoma is the mountain range that forms an extension of the Himalayas into Myanmar (Burma). These mountains run parallel to the coast of Myanmar and are part of the eastern Himalayan range system, continuing the mountain chain southward from Northeast India.

Ajanta mountain range is a short mountain range which spreads within Maharashtra. Aravalli mountain range spreads in western India and eastern Pakistan. Satpura range is a mountain range that starts from the state of Gujarat and extends to Madhya Pradesh, Chhattisgarh and Maharashtra.

The Tropic of Cancer (23.5°N latitude) passes through eight Indian states including Tripura and Mizoram in the northeast. This line divides India into subtropical north and tropical south zones. Other states on this latitude include Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, and West Bengal.

Volcanoes release various materials during eruptions, including molten lava, gases, steam, dust, and rock fragments. Different eruptions may produce different combinations of these materials, so 'all of the above' is the most comprehensive answer.

Circum-Pacific belt is the most susceptible to earthquakes.

An isthmus is a narrow strip of land that connects two larger landmasses and separates two bodies of water.

Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.

In lateritic soils, heavy rainfall causes intense leaching. Silica is highly soluble and is leached away, leaving behind iron and aluminum oxides.

The Jog Falls (Gersoppa Falls) are created by the Sharavati River in the state of Karnataka, India.

Crop rotation is the practice of growing different crops in succession on the same land to improve soil health and optimize nutrients.