Indian Geography (Gen. Studies)

Peninsular rivers are characterized by seasonal flow, flowing through shallow graded valleys with low gradients and little erosion, and most have reached a mature stage of development. However, meandering tendencies and frequent bed-shifting are NOT characteristics of peninsular rivers. These rivers have relatively stable courses compared to Himalayan rivers which are young and actively shifting.

Hussain Sagar Lake is located in Hyderabad, Telangana (formerly Andhra Pradesh). It was built in 1562 by Hussain Shah Wali during the reign of Ibrahim Quli Qutb Shah and connects the twin cities of Hyderabad and Secunderabad.

Tamil Nadu receives the maximum rainfall due to northeast monsoon.

Correct option is (3). 

Kakrapara Project is a dam and irrigation scheme on the Tapti (Tapi) River in Gujarat. It's located near Surat and serves irrigation and power generation needs. The other rivers listed (Mahanadi in Odisha, Tungabhadra in Karnataka/AP, Damodar in Jharkhand/WB) flow through different regions.

Biosphere reserves face significant threats from various forms of pollution including air pollution, water contamination, and industrial waste. Pollution disrupts delicate ecological balances, harms wildlife, and degrades habitat quality. While rainfall and soil erosion are natural processes, and population rate affects many ecosystems, pollution represents the most direct and widespread anthropogenic threat to protected areas.

Birth-rate is conventionally expressed as births per 1000 people per year. This standardized measurement allows for easy comparison between different populations and is the universally accepted demographic indicator.

Red soil, black soil, and peaty soil are all associated with tropical or subtropical regions (red and black soils are typical of tropical India, peaty soils form in tropical wetlands). Brown soil, however, is typically associated with temperate regions (like brown forest soils in Europe and North America), not tropical climates.

Laterite soil is formed in hot, wet tropical areas through intensive leaching - heavy rainfall washes away soluble minerals like silica and lime, leaving behind insoluble iron and aluminum oxides. This gives laterite its characteristic red/orange color. Black soil (regur) is a volcanic soil rich in clay, not formed through leaching.

Both statements are factually incorrect. India has approximately 14,500 km of navigable waterways (not 16,500 km as stated). The Inland Waterways Authority of India (IWAI) was established in 1986, not 1996.

Nhava Sheva (JNPT) near Mumbai is India's largest container port by volume, handling the maximum number of TEUs (Twenty-foot Equivalent Units) annually. It was specifically developed as a container-specialized port to decongest Mumbai Port and serve as India's primary container gateway. While other ports like Visakhapatnam handle significant cargo, JNPT leads specifically in container traffic.

Mulching involves covering soil with organic material or plastic to conserve moisture, suppress weeds, and protect soil structure - it actually PREVENTS soil erosion rather than causing it. Excessive ploughing loosens topsoil making it vulnerable, overgrazing removes vegetation cover, and contour ploughing is a protective measure. Therefore, mulching is the action that does not cause soil erosion.

Correct answer is (4). 

 Mahl language is spoken the most by people of Minicoy Island and Lakshadweep.

Ajanta mountain range is a short mountain range which spreads within Maharashtra. Aravalli mountain range spreads in western India and eastern Pakistan. Satpura range is a mountain range that starts from the state of Gujarat and extends to Madhya Pradesh, Chhattisgarh and Maharashtra.

Arunachal Pradesh

The Middle Himalayas (also called Himachal or Lesser Himalayas) have an average elevation range of approximately 1,828 to 3,000 meters (6,000 to 10,000 feet). This range lies between the Siwalik range (outer Himalayas) and the Great Himalayas (Himadri). Other options provide incorrect ranges.

The Amarnath Caves are located in Jammu and Kashmir, in the Anantnag district of the Kashmir Valley. These limestone caves are famous for the naturally formed ice Shiva Lingam and are an important Hindu pilgrimage site visited during July-August. The caves are situated at an altitude of 3,888m in the Himalayas.

India's recognized biodiversity hotspots are: Western Ghats, Eastern Himalayas, and Indo-Myanmar border region. The Western Himalayan Region is NOT classified as a biodiversity hotspot. Conservation International's global hotspot system identifies areas with high endemism and significant habitat loss, and while ecologically important, the Western Himalaya doesn't meet the specific criteria.

‘Sal’ trees are concentrated in Assam.

Volcanic eruptions produce materials in all three states of matter: solid (pyroclastics like ash and rocks), liquid (lava/molten rock), and gas (water vapor, CO2, sulfur dioxide). This makes option C the correct answer.

Singhbhum (in Jharkhand), Keonjhar (in Odisha), and Mayurbhanj (in Odisha) are all famous iron ore mining regions. These areas contain some of the richest iron ore deposits in India and have major mining operations.

Correct Answer: Rajasthan

Lalimli (also spelled Lal Imli) Mill is located in Kanpur, Uttar Pradesh. It was one of the major textile mills established during the British colonial period. Kanpur was an important center for the textile industry in northern India. Amritsar, Faridabad, and Ludhiana are not associated with Lalimli Mill.

Correct answer is (4). 

Correct Answer: Increase in the amount of carbon dioxide