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The Gutenberg discontinuity separates the mantle and core.
- True
- False
Answer: True
The Gutenberg discontinuity, at about 2,900 km depth, marks the boundary between Earth's mantle and outer core. It is characterized by a sudden drop in seismic wave velocity. Named after seismologist Beno Gutenberg.
Which Indian state is the largest producer of silk?
- Karnataka
- Andhra Pradesh
- West Bengal
- Tamil Nadu
Answer: Karnataka
Karnataka is the largest producer of silk in India, particularly Mulberry silk from Mysore. India is the second-largest silk producer globally after China. Sericulture provides livelihoods to rural communities, especially women.
The _______ is the southernmost tip of mainland India.
- Kanyakumari
- Rameswaram
- Dhanushkodi
- Thiruvananthapuram
Answer: Kanyakumari
Kanyakumari (Cape Comorin) is the southernmost tip of mainland India, where the Arabian Sea, Bay of Bengal, and Indian Ocean converge. It is a major pilgrimage and tourist site. Indira Point in Nicobar Islands is India's southernmost point overall.
Which river is known as the 'Danube of the East'?
- Mekong
- Irrawaddy
- Salween
- Chao Phraya
Answer: Mekong
The Mekong River is sometimes called the 'Danube of the East' due to its importance as a transboundary river in Southeast Asia. It flows through China, Myanmar, Laos, Thailand, Cambodia, and Vietnam, supporting agriculture and fisheries for millions.
The Malwa Plateau is located in central India.
- True
- False
Answer: True
The Malwa Plateau is located in central India, primarily in Madhya Pradesh and parts of Rajasthan. It is bounded by the Aravallis to the northwest and the Vindhyas to the south. The plateau is known for black soil and agriculture.
Which type of forest is found in the Western Ghats?
- Tropical Evergreen
- Tropical Deciduous
- Thorn Forest
- Montane Forest
Answer: Tropical Evergreen
The Western Ghats feature Tropical Evergreen forests due to high rainfall (>200 cm annually). These forests remain green year-round and host high biodiversity including endemic species. They are a UNESCO World Heritage Site and biodiversity hotspot.
The _______ is the largest peninsula in the world.
- Indian Peninsula
- Arabian Peninsula
- Iberian Peninsula
- Scandinavian Peninsula
Answer: Arabian Peninsula
The Arabian Peninsula is the largest peninsula in the world, covering about 3.2 million sq km. It includes Saudi Arabia, Yemen, Oman, UAE, Qatar, Bahrain, and Kuwait. It is rich in oil reserves and has a predominantly desert climate.
Which phenomenon is associated with the 'Madden-Julian Oscillation'?
- Monsoon variability
- El Niño
- Western Disturbances
- Cyclone formation
Answer: Monsoon variability
The Madden-Julian Oscillation (MJO) is an eastward-moving pattern of cloudiness and rainfall in the tropics that influences monsoon variability. It operates on a 30-60 day cycle and can enhance or suppress monsoon rainfall over India.
The Antarctic Circle is located at 66.5° South latitude.
- True
- False
Answer: True
The Antarctic Circle is located at approximately 66.5° South latitude. It marks the southernmost latitude where the Sun can remain continuously above or below the horizon for 24 hours (midnight sun/polar night).
Which is India's first offshore oil field?
- Mumbai High
- Krishna-Godavari Basin
- Cauvery Basin
- Andaman Basin
Answer: Mumbai High
Mumbai High (formerly Bombay High) is India's first and largest offshore oil field, discovered in 1974. Located in the Arabian Sea, it contributes about 40% of India's domestic oil production. It is operated by ONGC.
The _______ is the largest coral reef system in India.
- Gulf of Mannar
- Andaman Reefs
- Lakshadweep Reefs
- Gulf of Kutch
Answer: Gulf of Mannar
The Gulf of Mannar Marine National Park, between India and Sri Lanka, contains India's largest coral reef system. It is a UNESCO Biosphere Reserve with over 3,600 species. Coral reefs are threatened by warming seas and pollution.
Which is the capital of Turkey?
- Istanbul
- Ankara
- Izmir
- Bursa
Answer: Ankara
Ankara is the capital of Turkey, located in central Anatolia. It replaced Istanbul as the capital in 1923 after the Turkish War of Independence. Ankara is a major administrative and educational center, while Istanbul remains the largest city.
India is the largest producer of chickpeas (chana) in the world.
- True
- False
Answer: True
India is the largest producer and consumer of chickpeas (chana), contributing about 70% of global production. Major producing states are Madhya Pradesh, Maharashtra, and Rajasthan. Chickpeas are a key Rabi pulse crop rich in protein.
Which landform is created by wind erosion in deserts?
- Moraine
- Yardang
- Eskers
- Drumlin
Answer: Yardang
Yardangs are streamlined ridges carved by wind erosion in arid regions. They form parallel to prevailing winds and are common in deserts like the Sahara and Thar. Moraines, eskers, and drumlins are glacial landforms.
The _______ River is known as the 'Dakshin Kaveri'.
- Penna
- Palar
- Vaigai
- Periyar
Answer: Penna
The Penna River is sometimes called 'Dakshin Kaveri' due to its significance in South India. It originates in Karnataka and flows through Andhra Pradesh into the Bay of Bengal. However, this name is less commonly used than for the Godavari.
Which country has the most UNESCO World Heritage Sites?
- China
- Italy
- France
- Spain
Answer: Italy
Italy has the most UNESCO World Heritage Sites (59 as of 2024), including the Colosseum, Venice, and the Amalfi Coast. China is second with 57 sites. UNESCO sites are recognized for their cultural, historical, or natural significance.
The Indo-Gangetic Plain is formed by alluvial deposits.
- True
- False
Answer: True
The Indo-Gangetic Plain is formed by alluvial deposits brought by the Indus, Ganga, and Brahmaputra river systems. It is one of the world's most fertile regions, supporting intensive agriculture. The plain stretches from Punjab to Assam.
Which sanctuary is famous for the endangered Pygmy Hog?
- Manas
- Kaziranga
- Nameri
- Pobitora
Answer: Manas
Manas National Park in Assam is a critical habitat for the critically endangered Pygmy Hog, the world's smallest wild pig. Conservation breeding programs have helped increase their numbers. Manas is also a UNESCO World Heritage Site.
Which climate type is characterized by dry summers and wet winters?
- Tropical Monsoon
- Mediterranean
- Equatorial
- Continental
Answer: Mediterranean
Mediterranean climate is characterized by hot, dry summers and mild, wet winters. It is found around the Mediterranean Sea, California, central Chile, South Africa's Cape region, and southwestern Australia. Suitable for olives, grapes, and citrus.
Red soil gets its color from iron oxide.
- True
- False
Answer: True
Red soil gets its characteristic red color from iron oxide (ferric oxide) content. It is found in Tamil Nadu, Karnataka, Andhra Pradesh, and Odisha. Red soil is suitable for crops like millets, pulses, and oilseeds but is low in nitrogen and phosphorus.