GK (Geography)

The Jawahar Tunnel, also known as the Banihal Tunnel, is a 2.4 km long tunnel located in Jammu and Kashmir. It was constructed to provide an all-weather road link between Jammu and Srinagar, ensuring connectivity between the Jammu region and the Kashmir valley even during harsh winter months when the mountain passes are blocked by snow. The tunnel bypasses the snow-covered Banihal Pass, making it a critical infrastructure project for maintaining year-round connectivity in this strategically important region. Options A, B, and C are incorrect because they mention Simla or Leh, which are not connected by this specific tunnel.

Ocean surface currents in the northern hemisphere form clockwise rotating systems called gyres, primarily driven by wind patterns and the Coriolis effect. However, the question specifically asks for the primary cause. The Coriolis force causes the deflection that creates the circular pattern, but it is the prevailing winds (trade winds and westerlies) that provide the initial energy and momentum to the surface currents. The impact of prevailing winds is the more direct and immediate cause of both the movement and the clockwise direction (combined with Coriolis). Options A, B, and C are incorrect because: convergence/divergence is a result not the cause, density differences drive deep ocean currents not surface ones, and while Coriolis causes the rotation, winds drive the movement itself.

Tropical grasslands are known by different names in different parts of the world. In Africa, the tropical grasslands are called 'savannas' - characterized by scattered trees and a continuous grass layer, supporting diverse wildlife like zebras, elephants, and lions. Options A, C, and D are incorrect because: 'steppes' are temperate grasslands found in Eurasia (like in Central Asia and Eastern Europe), 'pampas' are the fertile grasslands of South America (mainly Argentina), and 'downs' refer to grassland hills in southeastern England. Thus, 'Savannas' is the correct answer as it is the specific term for African tropical grasslands.

The Gulf Stream is a powerful warm ocean current that originates in the Gulf of Mexico and flows northeast across the Atlantic Ocean. It carries warm equatorial waters toward Europe, specifically warming the western coast of Europe (including the British Isles, France, Spain, and Portugal). This warm current moderates the climate of Western Europe, making it significantly warmer than other regions at similar latitudes. Options A, B, and D are incorrect because: the Gulf Stream flows east not west, it does not reach Brazil's coast (that would be the Brazil Current), and it carries warm water not cold polar water. The Gulf Stream's warming effect on Western Europe is its most significant characteristic.

The Platypus, also known as the duckbill platypus, is a unique egg-laying mammal native to eastern Australia, including Tasmania. It is one of only five species of monotremes (egg-laying mammals) in the world and is characterized by its duck-like bill, beaver-like tail, and webbed feet. The platypus is an iconic species found only in Australia. Options A, B, and C are incorrect because platypuses are not found in Africa, America, or Asia - they are endemic to Australia. This makes platypus one of Australia's most unique and recognizable native animals, alongside kangaroos and koalas.

Zebu is a breed of domestic cattle that originated in South Asia and is particularly known for being kept by the Masai people of East Africa. They are well-adapted to tropical climates and are distinguished by their humped shoulders.

The Gulf Stream is a warm ocean current that originates in the Gulf of Mexico and flows across the Atlantic Ocean to Europe. It acts as a 'warm blanket' by moderating temperatures, making Western Europe significantly warmer than other regions at similar latitudes.

Prairies are temperate grasslands characterized by long treeless grassy plains. While campos (Brazil), llanos (Colombia/Venezuela), and pampas (Argentina) are also grasslands, prairies specifically refer to the temperate grasslands of North America.

The Sundarbans (Sunderban) is a tidal forest, specifically mangrove forests, located in the delta region of the Ganges, Brahmaputra, and Meghna rivers. The term 'tidal forest' refers to forests that are regularly flooded by tidal waters, which is characteristic of mangrove ecosystems.

The Atacama Desert is located in northern Chile, South America. It is considered the driest non-polar desert in the world, with some weather stations having never recorded rainfall. Parts of this desert indeed went without rain for nearly 400 years.

High Velds are temperate grasslands or plateaus found primarily in South Africa. The term 'veld' refers to wide open grassland areas in southern Africa, with High Velds being the elevated regions (typically above 1500 meters).

Slovenes are a South Slavic ethnic group primarily inhabiting Slovenia, which was part of Yugoslavia until 1991. The question reflects historical geography when Yugoslavia was a unified country comprising several republics including Slovenia.

Wood pulp for paper production primarily comes from coniferous (softwood) forest regions. Coniferous trees such as pine, spruce, and fir are preferred because their long fibers produce stronger paper, and these forests are more abundant in colder northern regions.

The Hawaiian Islands are located in the North Pacific Ocean, approximately 2,400 miles from the U.S. mainland. They are part of Polynesia and sit in the northern hemisphere of the Pacific.

Diego Garcia is a coral atoll located in the Indian Ocean, specifically in the central part of the ocean. It is part of the British Indian Ocean Territory and serves as an important military base.

Laos is the only landlocked country in Southeast Asia. While other Southeast Asian countries like Thailand and Vietnam have coastlines, Laos is entirely surrounded by land, bordered by China, Vietnam, Cambodia, Thailand, and Myanmar.

Hanoi is the capital of unified Vietnam. After the Vietnam War ended in 1975 and the country was unified in 1976, Hanoi became the capital of the entire country. Saigon was renamed Ho Chi Minh City and is not the capital.

Surinam was a Dutch colony from 1667 until its independence in 1975, hence it was previously known as Dutch Guiana. British Guiana is now Guyana, while Madagascar and Venezuela were never associated with Surinam.

Namibia was formerly known as South West Africa during the period of South African administration following World War I until its independence in 1990. Cambodia, Zaire (now Democratic Republic of Congo), and Rhodesia (now Zimbabwe) are entirely different countries.

The taiga (boreal forest) biome is located between the Arctic tundra to the north and the temperate grasslands and deciduous forests to the south. This creates a natural transition zone in the northern hemisphere.

The Benguela Current is a cold ocean current that flows northward along the western coast of southern Africa, affecting countries like Namibia and South Africa. It does not touch South America, India, or West Bengal.

The Sunda Strait is located in Indonesia and separates the islands of Java and Sumatra. It connects the Java Sea to the Indian Ocean and has been an important maritime route for centuries.

The Gulf of Mexico is the largest gulf in the world, covering approximately 1.5 million square kilometers. The Gulf of Cambay and Persian Gulf are significantly smaller, while the Strait of Hormuz is a narrow passage, not a gulf.

California and Texas were part of Mexico before the Mexican-American War (1846-1848) and were ceded to the United States through the Treaty of Guadalupe Hidalgo in 1848. The other options were never Mexican territory.

The Elephant Pass is a strategic causeway located in northern Sri Lanka, connecting the Jaffna Peninsula to the rest of the island country. It has been militarily significant during Sri Lanka's civil war.