Answer — Features

• Young fold mountains: Formed by the collision of the Indian and Eurasian plates; very high peaks and steep relief.
• Glaciated zones: Many glaciers and perpetual snow at high altitudes.
• Parallel ranges: Consist of Greater Himalayas, Lesser Himalayas and Shivaliks running west to east.

Significance

• Climate: Acts as a barrier to cold Central Asian winds and helps in the onset and distribution of the Indian monsoon.
• Rivers: Source of major perennial rivers (Ganga, Indus, Brahmaputra) due to glaciers and high rainfall; crucial for irrigation and drinking water.
• Biodiversity & resources: Supports unique ecosystems, forests and hydropower potential.

Answer — Characteristics

• Located north of the main Himalayan ranges; includes cold desert areas like Ladakh.
• Very low precipitation, large diurnal temperature ranges, sparse vegetation and high altitude.

Adaptations by People

• Livelihoods: Pastoralism (yak and sheep rearing), small-scale agriculture in irrigated patches and tourism-related services.
• Housing and clothing: Thick-walled houses to retain heat; woollen clothing.
• Water use: Use of glacial melt and traditional water channels (kutirs) for irrigation.

Answer — Role of Glaciers

• Act as natural reservoirs — store water in winter and release meltwater in summer supporting river flow year-round.
• Support downstream irrigation, drinking water supply and hydroelectric power.

Impacts of Glacier Retreat

• Reduced summer flows: Less water during dry months may affect agriculture and water availability.
• Risk of glacial lake outburst floods: Sudden floods can damage settlements and infrastructure.
• Long-term scarcity: Changes in seasonal flow patterns can disrupt irrigation and hydropower generation.

Answer — Biodiversity Support

• Varied elevation and climate zones from subtropical valleys to alpine meadows support diverse flora and fauna.
• Forests provide habitat for species like the snow leopard, Himalayan monal and many medicinal plants.

Threats from Human Activities

• Deforestation for timber and agriculture, infrastructure development (roads, dams), unregulated tourism and climate change.
• These lead to habitat loss, soil erosion and increased human-wildlife conflicts.

Answer — Terrace Farming

• Terraces are step-like fields cut into slopes to create flat surfaces for cultivation.

Advantages

• Reduces soil erosion, conserves water, and makes slope cultivation possible.
• Allows cultivation of crops like maize, millets, vegetables and fruit orchards.

Limitations

• Labour-intensive construction and maintenance; limited mechanisation and vulnerability to landslides in extreme weather.

Answer — Measures

• Implement sustainable tourism practices and community-based management of resources.
• Strict regulation for construction, careful assessment before dams and roads, and afforestation programmes.
• Promote alternative livelihoods like eco-tourism and handicrafts to reduce pressure on natural resources.

Answer — Formation

• Formed by the deposition of alluvial sediments carried by rivers originating in the Himalayas over geological time.

Importance

• Have deep, fertile alluvial soils ideal for intensive agriculture (rice, wheat, sugarcane).
• Support high population densities, major cities (e.g., Kolkata, Patna) and well-developed transport and trade networks.

Answer — Rivers & Irrigation

• Rivers provide perennial water for irrigation and recharge groundwater, allowing multiple cropping and high productivity.
• Irrigation systems (canals, tube wells) ensure water availability during dry seasons and support commercial crops.
• Rivers also serve as transport routes historically and support fisheries and floodplain agriculture.

Answer — Challenges

• Frequent floods cause loss of life, crops, livestock, property and spread of diseases.
• Soil erosion and siltation of river channels disrupt irrigation and navigation.

Mitigation Strategies

• Constructing embankments, flood forecasting systems, better land use planning, and restoring wetlands which act as natural buffers.
• Community awareness and preparedness programmes, along with relocation of settlements from high-risk zones.

Answer — Soil Variation & Cropping

• Alluvium ranges from old (coarser) to newer silt deposits; newer alluvium near riverbanks is often more fertile.
• Fertile areas support water-intensive crops like rice in eastern plains, while drier parts grow wheat and oilseeds.

Answer — Impact of Urbanisation

• Urban growth has led to expansion of cities, industrialisation, increased demand for land and resources, pollution of rivers and loss of agricultural land.
• However, cities also create jobs, markets for agricultural produce and centres of education and healthcare.

Answer — Sustainable Practices

• Promote integrated water management (efficient irrigation, rainwater harvesting), organic farming and crop diversification.
• Protect wetlands and floodplains, invest in flood-resilient infrastructure and support small-scale agro-industries to add value locally.

Answer — Physical Features & Climate

• Sandy plains and dunes, scanty rainfall (arid), high temperatures in summer and large temperature ranges.

Livelihoods

• Pastoralism (camel and goat rearing), irrigated agriculture near canals (e.g., Indira Gandhi Canal), handicrafts and tourism.

Answer — Importance of Aravallis

• One of the oldest mountain ranges with rocky ridges; source of minerals (marble, copper) and influencing local climate.
• Support towns and historical sites (e.g., Udaipur), provide forest resources and act as a watershed in the region.

Answer — Challenges & Conservation

• Challenges: Land degradation, water scarcity, overgrazing and desertification.
• Conservation measure: Afforestation with native species, water conservation (check dams, percolation tanks) and sustainable grazing practices.

Answer — Sustainable Tourism

• Promote eco-friendly lodges, limit vehicle movement in sensitive areas, involve local communities and ensure waste management and cultural preservation.
• Use tourism to provide alternative livelihoods without degrading natural resources.

Answer — Origin & Characteristics

• Ancient, stable landmass made of crystalline rocks; includes Deccan Plateau and smaller plateaus.
• Features: Elevated flatlands, rugged hills, rich mineral resources and less fertile compared to alluvial plains.

Differences from Gangetic Plains

• Plateau: Old rocks, minerals, uneven topography; Plains: newer alluvium, very fertile and flat supporting intensive agriculture.

Answer — Mineral Significance

• Deposits of iron ore, bauxite, mica and coal support steel, aluminium, electronics and power industries.
• Mining promotes regional development but requires environmental safeguards to prevent degradation.

Answer — River Behaviour

• Peninsular rivers (e.g., Godavari, Krishna) have a more seasonal flow, originate in the plateau, and often form waterfalls and rapids.
• Himalayan rivers are perennial with sustained flow due to glaciers and heavy rainfall.

Answer — Sustainable Mining

• Strict environmental impact assessments, reclamation of mined lands, controlled waste disposal, and community compensation and rehabilitation.
• Adopt cleaner technologies and monitor water and air quality regularly.

Answer — Ghats’ Role

• Western Ghats receive heavy rainfall and harbour rich biodiversity; Eastern Ghats are broken ranges with less rainfall.
• Both affect wind patterns, rainfall distribution and act as biological hotspots supporting endemic species.

Answer — Agriculture on Plateau

• Mixed farming: millets, pulses and oilseeds suited to drier soils; plantation crops (tea, coffee) in hilly tracts.
• Irrigation and soil conservation measures are used where feasible; cropping reflects rainfall and soil type.

Answer — Comparison

• Western coast: Narrow, with rocky headlands, estuaries and important ports (Mumbai, Mangalore); fishing and trade are prominent.
• Eastern coast: Broader plains, large deltas (Ganges, Godavari), extensive agriculture and ports like Chennai and Kolkata.
• Both coasts support fisheries, ports, tourism and coastal agriculture though their geomorphology differs.

Answer — Origin & Features

• Andaman & Nicobar: Volcanic and geologically younger, hilly, with rainforests and rich biodiversity.
• Lakshadweep: Coral atolls and reefs formed by coral growth, low-lying with lagoons.

Differences

• Geological origin (volcanic vs coral), biodiversity types, and the nature of human settlement and economy (largely fishing and tourism).

Answer — Economic Contribution

• Ports and shipping promote international trade; fisheries provide livelihoods; coastal tourism generates income.

Environmental Concerns

• Coastal erosion, pollution, mangrove destruction, and impacts of sea-level rise and extreme weather events on communities and infrastructure.

Answer — Integrated Measures

• Conserve and restore mangroves, regulate coastal development, promote sustainable fishing and ecotourism, and implement early-warning systems for storms and tides.
• Engage local communities in resource management and provide alternative livelihoods to reduce pressure on fragile ecosystems.

Answer — Ecology

• Complex network of tidal rivers, mudflats and dense mangrove forests adapted to saline, waterlogged conditions.

Role in Coastal Protection

• Mangroves reduce wave energy, trap sediments, prevent coastal erosion and act as natural buffers against cyclones and storm surges.
• They also provide nursery grounds for fish and sustain biodiversity.

Answer — Threats

• Sea-level rise, increased salinity, deforestation, pollution, overfishing and human encroachment pose major threats.

Conservation Strategies

• Strict protection of mangrove areas, community-based conservation, sustainable fishing practices, pollution control and climate-adaptation measures like salt-tolerant plantings and managed retreat where necessary.

Answer — Influence of Landforms

• Mountains: Limited agriculture, terrace farming, pastoralism, tourism and hydropower; settlements concentrated in valleys and foothills.
• Plains: Intensive agriculture, dense population, urban growth and transport networks.
• Plateaus: Mineral extraction and industries, mixed farming and scattered settlements.
• Deserts: Sparse population, pastoralism and specialized agriculture where water is available.
• Coasts: Fishing, ports, maritime trade, tourism and coastal agriculture in deltas.

Answer — Balanced Regional Development

• Assess regional strengths (soil, water, minerals) and promote appropriate industries: agro-based in fertile plains, eco-tourism in mountains, sustainable mining on plateaus, fisheries and ports on coasts.
• Invest in infrastructure (roads, irrigation, electricity), education and healthcare to build human capital, and enforce environmental safeguards (protected areas, pollution controls).
• Encourage local participation, diversify livelihoods, and use technology (drip irrigation, renewable energy) to increase resilience to climate change.