Geography: UPSC Previous Year Questions (Prelims)

Explanation

Option (a) is incorrect: Anamalai Hills, also known as the Elephant Hills, are a mountain range located in the Western Ghats, primarily within the states of Kerala and Tamil Nadu. They are renowned for their high peaks, including Anamudi, the highest peak in Southern India. While significant within the Western Ghats, the Anamalai Hills are not situated at the confluence of the Eastern and Western Ghats.

Option (b) is incorrect: The Cardamom Hills, part of the Western Ghats, are situated in Kerala and Tamil Nadu. They are named for the cardamom spice that is cultivated extensively in this region. These hills are known for their biodiversity and dense forests.

Option (c) is correct: The Nilgiri Hills are a mountain range located in the Western Ghats of Tamil Nadu. They are recognized as the junction point of the Eastern and Western Ghats mountain ranges. The region is characterized by its rolling hills, tea plantations, and diverse flora and fauna. The Nilgiris’ significance lies in their unique geographical position which provides bridge between the two distinct mountain systems. Ooty (Udhagamandalam), the famous hill station is located in the Nilgiris.

Option (d) is incorrect: The Shevaroy Hills are a smaller mountain range located in the Eastern Ghats of Tamil Nadu. They are known for their coffee plantations and the hill station of Yercaud. As part of the Eastern Ghats, the Shevaroy Hills are geographically separate from the meeting point of the Eastern and Western Ghats, which is defined by the Nilgiri Hills.

Explanation

Pair (1) is incorrectly matched: The Chambal River is a major tributary of the Yamuna River, a significant river in North India. The Narmada River, on the other hand, flows westward and is independent of the Yamuna and Chambal river systems. These two rivers are geographically separated and do not share a tributary-main river relationship.

Pair (2) is incorrectly matched: The Sone River is a tributary of the Ganga River, not the Yamuna. It originates in the Amarkantak Plateau (Madhya Pradesh) and joins the Ganga near Patna.

Pair (3) is correctly matched: Manas originates in the Himalayas in Bhutan and flows through Assam. It joins the Brahmaputra near Jogighopa. It is known for its rich biodiversity and is part of the Manas National Park, a UNESCO World Heritage Site.

Explanation

Statement 1 is correct: The saltwater crocodile (Crocodylus porosus) is India’s largest reptile and is found in the mangroves and coastal waters of:

Andaman & Nicobar Islands (notably in North & Middle Andaman) Bhitarkanika National Park, Odisha Sundarbans, West Bengal Mahanadi & Godavari estuaries They are apex predators inhabiting coastal areas, estuaries, rivers, and mangrove swamps. The Andaman and Nicobar Islands provide suitable habitats for these crocodiles. Bhitarkanika holds the record for the world’s largest saltwater crocodile, measuring 7.1 meters (23 feet)

Statement 2 is incorrect: Shrews are small mammals found in various parts of India, including the Western Ghats but they are not exclusive to the Malabar region. Tapirs are not found in India. They are native to Central and South America, as well as Southeast Asia (Malayan tapir).

Explanation

Coal mining plays a crucial role in India’s energy sector, and the Namchik-Namphuk coalfields are an important part of India’s northeastern coal reserves.

Option (a) is correct: Arunachal Pradesh: Arunachal Pradesh’s primary coal resource is concentrated in the Namchik-Namphuk coalfields located in the Changlang district. These are the most significant coal-bearing areas in the state, though they are relatively small compared to major coalfields elsewhere in India. The coal found here is generally of tertiary age.

Option (b), (c) and (d) are incorrect:

Meghalaya possesses coal deposits, primarily in the Garo Hills region, which includes areas like Nangalbibra, Siju, and others. The coal here is typically sub-bituminous. It’s important to note that much of the coal mining in Meghalaya is done through small-scale, often unregulated operations (rat-hole mining) which has raised environmental concerns. Manipur has limited coal resources, and no significant, named coalfields are widely recognized. Coal occurrences are scattered and generally not considered commercially viable. Exploration has been carried out in areas like the Ukhrul district, but large-scale mining operations are not a feature of the state. Mizoram has no significant coalfields within the state. Coal occurrences are scattered and not considered economically significant. The geological formations in Mizoram are not conducive to the formation of large, commercially viable coal deposits.

Explanation

Chhattisgarh has significant deposits of bauxite, particularly in the Maikal Hills and the Surguja district. The mineral is found in is associated with lateritic formations. These bauxite deposits contribute to India’s aluminum industry. Dolomite is a sedimentary rock composed primarily of calcium magnesium carbonate, is another mineral resource found in Chhattisgarh. It is found in the Bastar and Durg districts of Chhattisgarh. Dolomite is used in the steel industry, cement manufacturing, and as a source of magnesium. Dolomite is used in a range of industrial applications, including cement manufacturing, steelmaking, and as a fluxing agent. Chhattisgarh is endowed with substantial deposits of iron ore, a crucial raw material for the steel industry. The state’s iron ore reserves are known for their quality and contribute significantly to India’s steel production capacity. Major deposits are found in the Bailadila range in the Dantewada district which is known for its high-grade hematite iron ore.. Chhattisgarh is one of the few states in India where tin ore is found in commercially viable quantities. The state has tin deposits, particularly in the Bastar region. Tin is a relatively rare metal and is used in various applications, including alloys, solder, and plating.

Explanation

The Tehri Hydropower Complex is located on the Bhagirathi river. This complex features a towering earth and rock-fill dam, one of the world’s tallest. The project has also spurred regional development in Garhwal including a new town and improved infrastructure. Bhagirathi River is considered the primary source stream of the Ganges. It emerges from the Gangotri Glacier in Uttarakhand

Explanation

Pair 1 is incorrectly matched: Kapildhara Falls is l situated on the Narmada River located in the state of Madhya Pradesh, India. It is named after sage Kapila who is believed to have meditated here.

Pair 2 is correctly matched: Jog Falls on Sharavathi River is located in Shivamogga district, Karnataka.. This impressive waterfall is formed by the Sharavathi River plunging down a deep gorge. It is also called "Gerusoppa Falls" or "Jogada Gundi".

Pair 3 is correctly matched: Shivasamudram Falls is another well-known waterfall in Karnataka, is correctly associated with the Cauvery River. This waterfall is not only a natural spectacle but also a source of hydroelectric power.

Explanation

Pair 1 is correctly matched: The Daman Ganga Irrigation Project is located in Gujarat. This project utilizes the waters of the Damanganga River which flows through both Gujarat and Maharashtra, to provide irrigation to agricultural lands in the region. This project is crucial for irrigation, drinking water, and industrial water supply in Gujarat and Dadra & Nagar Haveli.

Pair 2 is correctly matched: The Girna Irrigation Project is situated in Maharashtra. This project harnesses the waters of the Girna River, a tributary of the Tapi River.The key component of the project is the Girna Dam, an earthfill dam constructed across the Girna River. The primary purpose of the Girna Irrigation Project is to provide irrigation to agricultural lands in the Nashik and Jalgaon districts of Maharashtra. The project helps to stabilize and increase agricultural production in this region.

Pair 3 is correctly matched: Pamba River originates in the Western Ghats and flows through Pathanamthitta district, Kerala before emptying into the Vembanad Lake. The Pamba Irrigation Project was built for agriculture and drinking water supply, mainly benefiting Alappuzha, Pathanamthitta, and Kottayam districts. This river is also spiritually significant as it flows near the Sabarimala Temple.

Explanation

The Tapovan and Vishnugarh hydroelectric projects are located in Chamoli district of Uttarakhand. These projects utilize the waters of the Dhauliganga River. The Tapovan-Vishnugarh project is a run-of-river scheme, meaning it harnesses the natural flow of the river without creating a large storage reservoir. Developed by NTPC Limited, a major power generation company in India, the Tapovan-Vishnugarh project has a planned installed capacity of 520 MW. This capacity represents a substantial contribution to the power generation capabilities of Uttarakhand and the nation. Run-of-river projects like this generally have a smaller environmental footprint compared to large dam projects with vast reservoirs.

Explanation

Malta is an island country situated in the central Mediterranean Sea. It is strategically located between Sicily (Italy) to the north and North Africa (specifically Tunisia and Libya) to the south.

Option (a), (c) and (d) are incorrect:

The Baltic Sea is located in Northern Europe bordered by countries such as Sweden, Finland, Estonia, Latvia, Lithuania, Poland, and Germany. It is a brackish inland sea and it plays a significant role in regional trade and ecology in Northern Europe. The Black Sea lies to the northeast of Malta, bordered by Turkey, Bulgaria, Romania, Ukraine, and Russia. It is surrounded by countries in Eastern Europe and Western Asia and is important for trade routes, especially for countries like Russia and Ukraine. The North Sea is located in Northern Europe, bordered by Norway, Denmark, Germany, the Netherlands, Belgium, and the United Kingdom. It is a cold, productive sea that serves as a major fishing area and an important oil-producing region.