Geography – Medium Level – GK Questions

The Lehmann discontinuity is named after Danish seismologist Inge Lehmann, who discovered Earth's solid inner core in 1936. The discontinuity at about 5,150 km depth marks the boundary between the liquid outer core and solid inner core.

Karnataka is the largest producer of sunflower in India, contributing about 30% of national production. Major sunflower-growing districts are Tumakuru, Chitradurga, and Davangere. Sunflower oil is a healthy cooking oil rich in vitamin E.

The Huang He (Yellow River) is called 'China's Sorrow' due to its history of catastrophic floods caused by silt deposition raising the riverbed. Massive dam projects like the Xiaolangdi Dam now help control flooding and generate hydropower.

The Naga Hills form part of the India-Myanmar border in Nagaland and Manipur. They are an extension of the Eastern Himalayas and part of the Indo-Burma biodiversity hotspot. The hills are home to diverse Naga tribes with rich cultural heritage.

All three—National Chambal, Bhitarkanika, and Sultanpur—are important habitats for the Indian monitor lizard. This large reptile is an indicator of healthy wetland ecosystems. Conservation focuses on reducing habitat loss and human conflict.

Lake Geneva (Lac Léman) is the largest lake in the Alps (580 sq km), shared by Switzerland and France. Located at 372 m elevation, it is fed by the Rhône River. The lake is known for its scenic beauty and cities like Geneva and Lausanne.

India's first commercial small modular reactor (SMR) project is planned in Rajasthan. SMRs are compact nuclear reactors (under 300 MW) offering flexibility and safety. They support India's goal of 22.4 GW nuclear capacity by 2031.

Marine National Park in the Gulf of Kutch, Gujarat, is the largest national park in the state (163 sq km marine area). It is India's first marine protected area, featuring coral reefs, mangroves, and diverse marine life including dolphins and sea turtles.

China is the largest producer of potatoes globally, followed by India. India produces about 50 million tonnes annually, primarily in Uttar Pradesh, West Bengal, and Punjab. Potatoes are a key Rabi crop and food security crop.

Millets are called the 'Crop of the Poor' as they grow in marginal soils with minimal water and inputs. They are nutritious, climate-resilient, and support small farmers. The UN's International Year of Millets (2023) promoted their cultivation.

Mauna Loa in Hawaii is the world's largest active volcano by volume (about 75,000 cu km). It is a shield volcano that has erupted 33 times since 1843. Though Mount Everest is taller above sea level, Mauna Loa is taller from base to summit.

Dudhwa National Park in Uttar Pradesh is the largest national park in the state (490 sq km). Located in the Terai region, it is part of the Dudhwa Tiger Reserve and supports tigers, rhinos, and swamp deer. The park is near the India-Nepal border.

The Gutenberg discontinuity is named after seismologist Beno Gutenberg, not Johannes Gutenberg (printing press inventor). It marks the boundary between Earth's mantle and outer core at about 2,900 km depth.

Madhya Pradesh is the largest producer of soybean in India, contributing about 50% of national production. Major soybean-growing districts are Indore, Ujjain, and Dewas. Soybean is used for oil, animal feed, and biodiesel.

The Danube River is called the 'River of Dreams' in European literature and music, notably in Johann Strauss's waltz 'The Blue Danube'. It flows through 10 countries and is the second-longest river in Europe after the Volga.

The Patkai Hills form part of the India-Myanmar border in Arunachal Pradesh, Nagaland, and Manipur. They are an extension of the Eastern Himalayas and part of the Indo-Burma biodiversity hotspot. The hills are home to diverse tribal communities.

All three—National Chambal, Bhitarkanika, and Chilika—are important habitats for the Indian otter. This semi-aquatic mammal is an indicator of healthy freshwater ecosystems. Conservation efforts focus on reducing pollution and protecting riverine habitats.

Lake Vostok is the largest subglacial lake in Antarctica (12,500 sq km), buried under 4 km of ice. Discovered by satellite radar, it may contain unique microbial life isolated for millions of years. Research on the lake helps understand extremophile life.

India's first commercial green hydrogen project was launched in Gujarat by Reliance Industries. Green hydrogen is produced using renewable energy and is crucial for decarbonizing industries like steel and cement. India aims to become a global green hydrogen hub.

Desert National Park in Rajasthan is the largest national park in the state (3,162 sq km). Located in the Thar Desert, it is famous for the Great Indian Bustard, blackbuck, and desert fox. The park showcases unique desert ecosystems.