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Which is India's first commercial nuclear reactor?
- APSARA
- CIRUS
- Tarapur-1
- Kalpakkam
Answer: Tarapur-1
Tarapur-1, commissioned in 1969, was India's first commercial nuclear reactor. It is part of the Tarapur Atomic Power Station in Maharashtra. APSARA (1956) was India's first research reactor, but Tarapur-1 was the first for commercial power generation.
The _______ is the largest national park in India by area.
- Kaziranga
- Hemis
- Desert National Park
- Gangotri
Answer: Hemis
Hemis National Park in Ladakh is the largest national park in India by area (4,400 sq km). It is a high-altitude park known for the endangered Snow Leopard. The park is part of the Trans-Himalayan ecosystem and has sparse vegetation.
India is the largest producer of spices in the world.
- True
- False
Answer: True
India is the largest producer, consumer, and exporter of spices in the world. Major spices include chili, turmeric, cumin, coriander, and black pepper. The Spices Board of India promotes quality and exports. India produces about 75 of the 109 ISO-listed spices.
The _______ Revolution is associated with egg and poultry production in India.
- White
- Yellow
- Silver
- Pink
Answer: Silver
The Silver Revolution refers to the growth in egg and poultry production in India during the 1970s-80s. It was driven by improved breeds, feed, and management practices. India is now among the top egg producers globally.
Which strait connects the Red Sea and the Gulf of Aden?
- Strait of Hormuz
- Bab el-Mandeb
- Strait of Malacca
- Bosphorus
Answer: Bab el-Mandeb
Bab el-Mandeb Strait connects the Red Sea to the Gulf of Aden and the Arabian Sea. It is a strategically vital chokepoint for global oil shipments. The name means 'Gate of Tears' in Arabic due to dangerous navigation conditions.
The _______ is the longest river in peninsular India.
- Krishna
- Godavari
- Mahanadi
- Cauvery
Answer: Godavari
The Godavari River, at 1,465 km, is the longest river in peninsular India. It originates in Maharashtra (Trimbakeshwar) and flows through Telangana, Andhra Pradesh, and Chhattisgarh before emptying into the Bay of Bengal. It is called 'Dakshin Ganga'.
The Earth's core is primarily composed of iron and nickel.
- True
- False
Answer: True
The Earth's core is primarily composed of iron (about 85%) and nickel (about 10%), with lighter elements like sulfur and oxygen. The outer core is liquid, generating Earth's magnetic field through convection. The inner core is solid due to extreme pressure.
Which Indian state is the largest producer of cotton?
- Gujarat
- Maharashtra
- Telangana
- Punjab
Answer: Gujarat
Gujarat is the largest producer of cotton in India, contributing about 30% of national production. Major cotton-growing regions include Saurashtra, Kutch, and North Gujarat. India is the largest cotton producer globally, with Gujarat and Maharashtra leading.
Which river flows through Paris?
- Thames
- Rhine
- Seine
- Danube
Answer: Seine
The Seine River flows through Paris, France. It is about 777 km long and empties into the English Channel at Le Havre. The Seine has been vital for trade and culture, with iconic landmarks like Notre-Dame and the Eiffel Tower along its banks.
The Cardamom Hills are part of the Western Ghats.
- True
- False
Answer: True
The Cardamom Hills are part of the southern Western Ghats, located in Kerala and Tamil Nadu. They are named after the cardamom spice grown there. The hills are a UNESCO World Heritage Site and part of the Nilgiri Biosphere Reserve.
Which state has the largest area under mangrove forests in India?
- West Bengal
- Gujarat
- Andaman & Nicobar
- Odisha
Answer: West Bengal
West Bengal has the largest area under mangrove forests in India, primarily in the Sundarbans. Mangroves are salt-tolerant trees that grow in coastal intertidal zones. They protect coastlines from erosion and provide habitat for diverse wildlife.
The _______ is the longest mountain range in the world.
- Himalayas
- Andes
- Rockies
- Alps
Answer: Andes
The Andes in South America is the longest continental mountain range in the world, stretching about 7,000 km along the western coast. It passes through seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.
Which is India's largest hydroelectric power station?
- Tehri Dam
- Bhakra Nangal
- Koyna
- Sardar Sarovar
Answer: Koyna
Koyna Hydroelectric Project in Maharashtra is India's largest hydroelectric power station with an installed capacity of 1,960 MW. Located on the Koyna River, it has four stages of power generation. It is a pumped-storage project critical for grid stability.
The _______ is the largest saltwater lake in India.
- Pulicat Lake
- Chilika Lake
- Sambhar Lake
- Vembanad Lake
Answer: Chilika Lake
Chilika Lake in Odisha is the largest saltwater lake (brackish water lagoon) in India, covering about 1,100 sq km. It is the largest coastal lagoon in India and the second-largest in the world. It is a Ramsar site and home to migratory birds and Irrawaddy dolphins.
India is the second-largest producer of wheat in the world.
- True
- False
Answer: True
India is the second-largest producer of wheat in the world after China, producing about 110 million tonnes annually. Major wheat-producing states are Uttar Pradesh, Punjab, Madhya Pradesh, and Haryana. Wheat is a staple Rabi crop in North India.
The _______ River is known as the 'Sorrow of Bihar'.
- Gandak
- Kosi
- Bagmati
- Son
Answer: Kosi
The Kosi River is known as the 'Sorrow of Bihar' due to its frequent flooding and course changes, causing widespread destruction. It originates in Nepal and joins the Ganga in Bihar. The Kosi Project aims to control floods and provide irrigation.
Which country has the longest coastline in the world?
- Russia
- Australia
- Canada
- Indonesia
Answer: Canada
Canada has the longest coastline in the world at about 202,080 km, bordering the Pacific, Arctic, and Atlantic Oceans. Its extensive coastline includes numerous islands, fjords, and inlets. Indonesia has the second-longest coastline among island nations.
Which sanctuary is famous for the Great Indian Bustard?
- Desert National Park
- Keoladeo Ghana
- Ranthambore
- Sariska
Answer: Desert National Park
Desert National Park in Rajasthan is a critical habitat for the critically endangered Great Indian Bustard. The bird is one of the heaviest flying birds and is the state bird of Rajasthan. Conservation efforts are underway to prevent its extinction.
India is the largest producer of _______ in the world.
- Wheat
- Rice
- Milk
- Cotton
Answer: Milk
India is the largest producer of milk in the world, contributing about 24% of global production. This achievement is due to Operation Flood, which made India self-sufficient in milk production. India also leads in pulses, jute, and spices production.
Laterite soil is rich in iron and aluminum oxides.
- True
- False
Answer: True
Laterite soil is rich in iron and aluminum oxides, giving it a reddish color. It forms in hot, wet tropical areas with heavy rainfall that leaches silica. Found in Kerala, Karnataka, Tamil Nadu, and Odisha. It is suitable for plantation crops like tea, coffee, and cashew.