Ans.

(a) Meaning of Resource

A resource is anything available in the environment which can satisfy human needs, and is technologically accessible, economically feasible and culturally acceptable.

(b) Conditions that make something a resource

• Technological accessibility
  People must have the knowledge, tools and technology to use a substance.
  Example: Crude oil became a resource only after the invention of oil drilling and refining technology.
• Economic feasibility
  It should be profitable and economical to extract, process and use it.
  Example: Gold deposits which are too deep and costly to mine may not be considered a useful resource.
• Cultural and social acceptance
  Use of the substance should be acceptable to the society and fit into its values and traditions.
  Example: In some regions, nuclear power is opposed due to cultural and environmental concerns.

(c) Conclusion

Thus, a substance of nature becomes a resource only when human knowledge, technology and culture combine to make its use possible and meaningful for society.

Ans.

(a) On the basis of origin

• Biotic resources
  • Obtained from the biosphere and have life.
  • They include all living organisms.
  Examples: Plants, animals, human beings, fisheries.
• Abiotic resources
  • Non-living resources of nature.
  • Physical and chemical components of the environment.
  Examples: Rocks, minerals, air, water.

(b) On the basis of exhaustibility

• Renewable resources (Replenishable)
  • Can be renewed or reproduced naturally within a short time.
  • They may be continuous (like solar) or replenishable (like forests).
  Examples: Solar energy, wind energy, forests, wildlife.
• Non-renewable resources
  • Occur over a very long geological time.
  • Once exhausted, they cannot be quickly replaced; formation takes millions of years.
  Examples: Coal, petroleum, natural gas, most minerals.

(c) Significance

Understanding these classifications helps in planning the judicious use of renewable and non-renewable resources to ensure sustainable development.

Ans.

(a) Individual resources

• Owned privately by individuals or families.
• Examples: A farmer’s agricultural land, a private house, a personal well or pump set.

(b) Community-owned resources

• Accessible to all members of a community; used collectively.
• Examples: Village ponds, public parks, playgrounds, community halls.

(c) National resources

• Belong to the nation; under the legal control of the government.
• Country has rights over all resources within its territory and Exclusive Economic Zone (EEZ).
• Examples: Roads, canals, railways, minerals, forests, rivers, coastal waters up to 12 nautical miles.

(d) International resources

• Belong to the international community; no single country can claim ownership.
• Use is regulated by international organisations and treaties.
• Examples: Open oceans beyond 200 nautical miles from the coast, the Antarctic region, outer space.

(e) Conclusion

This classification shows how resources are shared and controlled at different levels, from individuals to the global community, and highlights the need for cooperation and regulation.

Ans.

(a) Meaning of development of resources

Development of resources means using natural and human-made resources to satisfy human needs, improve the quality of life and promote economic growth.

(b) Need for balanced resource development

• To avoid depletion of resources
  Overuse of coal, petroleum, forests etc. can lead to depletion, leaving little for future generations.
• To reduce regional imbalances
  Some regions like parts of Jharkhand or Chhattisgarh are rich in minerals but remain backward, while others with fewer resources are well developed due to better planning and technology.
• To protect the environment
  Unplanned industrialisation and resource extraction cause pollution, land degradation and global warming.
• To ensure social justice
  Concentration of resources in a few hands increases inequality; balanced development benefits all sections.

(c) Example

Using river water only for big dams may harm local communities; a balanced approach would include large, medium and small irrigation projects, drinking water schemes and ecological protection.

(d) Conclusion

Hence, resource development should be planned, equitable and eco-friendly, not exploitative or wasteful.

Ans.

(a) Meaning

Sustainable development is “development that meets the needs of the present without compromising the ability of future generations to meet their own needs”.

(b) Main features of sustainable development

• Judicious use of resources
  • Avoid overexploitation of forests, water, minerals.
  • Promote recycling, reuse and efficiency.
• Environmental protection
  • Control pollution, land degradation and deforestation.
  • Conserve biodiversity and ecological balance.
• Intergenerational equity
  • Present generations must not use resources in a way that harms future generations.
  • Resources should be left in good quantity and quality.
• Social equity and poverty reduction
  • Benefits of development should reach all, especially the poor and weaker sections.
  • No group should be deprived of basic resources like water, land and forests.

(c) Importance for India

• India has a large and growing population; pressure on resources is high.
• Many people depend directly on land, soil, forests and water for their livelihood.
• Rapid industrialisation and urbanisation are causing serious environmental problems.

Therefore, India must follow a path of sustainable and inclusive development to ensure long-term prosperity and environmental security.

Ans.

(a) Gandhi’s statement

Mahatma Gandhi said, “There is enough for everybody’s need but not for anybody’s greed.” This highlights the difference between need-based and greed-based resource use.

(b) Relevance to environmental problems

• Overexploitation of resources
  • Greedy exploitation of coal, petroleum, forests and minerals has led to depletion and scarcity.
  • Example: Rapid cutting of forests for commercial purposes causes deforestation and loss of biodiversity.
• Pollution and climate change
  • Excessive use of fossil fuels has increased greenhouse gases, causing global warming.
  • Greed for profit often ignores pollution control laws.
• Social inequality
  • A few people and countries consume a large share of resources, while many remain poor and deprived.
  • This creates injustice and conflicts over land, water and minerals.

(c) Lesson from Gandhi’s idea

Gandhi’s idea teaches that development should be based on need, simplicity and restraint, not on uncontrolled consumption. This is the core spirit of sustainable development.

Ans.

(a) Rio de Janeiro Earth Summit (1992)

• United Nations Conference on Environment and Development (UNCED) held in Rio de Janeiro, Brazil.
• Attended by leaders from many countries to discuss global environmental issues.

(b) Main decisions of the Summit

• Recognition that global environmental problems like climate change, biodiversity loss and pollution are serious.
• Acceptance of the principle of sustainable development.
• Agreement that rich and poor countries have common but differentiated responsibilities.

(c) Agenda 21

• A global action plan for sustainable development in the 21st century.
• Encourages governments to prepare local and national strategies for environment-friendly development.
• Focuses on poverty reduction, resource conservation and people’s participation.

(d) Significance

The Earth Summit and Agenda 21 gave a strong message that development and environment cannot be separated. Countries like India must use their resources judiciously and involve people in decisions to protect the planet for future generations.

Ans.

(a) Meaning of resource planning

Resource planning is the process of identifying, assessing and judiciously using resources to meet present and future needs in a balanced and sustainable manner.

(b) Steps in resource planning

1. Identification and inventory of resources
   • Systematic survey, mapping and measurement of resources.
   • Use of remote sensing, aerial photography and GIS to prepare maps and data.
   • Example: Land use maps, mineral maps, water resource maps.
2. Developing a planning structure
   • Evolving a plan for resource development and utilisation according to technology, needs and priorities of the country.
   • Deciding which regions will develop which resources and in what manner.
3. Matching resource development plans with national development
   • Integrating resource plans with overall economic and social plans of the country.
   • Implementation through various government programmes, policies and administrative machinery.

(c) Conclusion

Proper resource planning helps in reducing regional imbalances, preventing wastage and promoting sustainable development in India.

Ans.

Reasons for the need of resource planning in India:

• Uneven distribution of resources
  • Some regions (like the Chotanagpur plateau) are rich in minerals and coal, while others are poor.
  • Resource planning is needed to balance development between such regions.
• Large population and high demand
  • India’s huge population creates heavy pressure on land, water, forests and other resources.
  • Planned use ensures that basic needs of all are met.
• Risk of overexploitation and depletion
  • Unplanned use may deplete non-renewable resources like petroleum, coal and minerals.
  • Planning promotes conservation and efficient use.
• Environmental protection
  • Industrialisation and intensive agriculture can cause pollution and land degradation.
  • Resource planning makes sure that environmental impacts are considered.
• Regional and social equity
  • Some areas may remain backward without proper planning, leading to inequality and unrest.
  • Resource planning promotes equitable distribution and balanced growth.

Thus, resource planning is essential for India to achieve economic growth, social justice and environmental sustainability.

Ans.

(a) Regions rich in resources but backward

• Parts of Jharkhand, Chhattisgarh and Odisha are rich in minerals like coal, iron ore, bauxite and mica.
• Despite this, these regions suffer from poverty, low industrialisation and poor infrastructure.
• Reasons include lack of proper planning, investment, education and healthcare.

(b) Regions with poor resource base but developed

• Countries like Japan and some nations of Western Europe have limited mineral resources.
• Still, they are highly developed due to skilled human resources, advanced technology and efficient planning.
• They import raw materials, add value through manufacturing and export finished goods.

(c) Lesson

These examples show that mere availability of resources is not enough. Resource planning, human development and good governance are equally important for economic progress.

Ans.

(a) Resource planning and economic development

• Ensures availability of raw materials for industries and agriculture.
• Helps in developing infrastructure like roads, power and irrigation.
• Promotes regional development and creates employment opportunities.

(b) Economic development and environmental conservation

• Unplanned development can damage environment through deforestation, pollution and land degradation.
• Planned development includes environmental impact assessment and safeguards.

(c) Integrating both through resource planning

• Resource planning tries to balance growth with conservation.
• For example, planning irrigation projects with soil conservation measures and afforestation.
• This approach ensures that development is long-term, equitable and environmentally sound.

Hence, in India, resource planning acts as a link between economic progress and environmental protection.

Ans.

(a) Meaning

Resource conservation means the careful and judicious use of resources to avoid wastage and overexploitation and to preserve them for future generations.

(b) Measures at individual and community levels

• Reduce, reuse and recycle
  • Use fewer resources, reuse items and recycle materials like paper, metal and plastic.
• Saving electricity and water
  • Switching off lights and fans when not needed; using energy-efficient bulbs.
  • Closing taps properly, fixing leakages and using buckets instead of showers.
• Protecting local forests and water bodies
  • Participating in tree plantation drives and avoiding cutting of trees.
  • Keeping ponds, lakes and rivers clean and free from garbage.
• Using public transport and car-pooling
  • Reduces fuel consumption and air pollution.
  • Encourages efficient use of energy resources.
• Spreading awareness
  • Educating family and friends about the importance of conservation.
  • Supporting environmental movements and campaigns.

These simple steps, when followed by many people, can lead to significant conservation of natural resources.

Ans.

(a) The Chipko Movement

• Started in the 1970s in the Himalayan region of Uttarakhand.
• Villagers, especially women, hugged the trees to prevent contractors from cutting them.

(b) Role in resource conservation

• Protection of forests
  • Prevented large-scale deforestation in the region.
  • Highlighted that forests are vital for soil, water and livelihood.
• Awareness generation
  • Inspired people across India to protect forests and the environment.
  • Made the government and society realise the value of community participation.
• Policy influence
  • Contributed to stricter forest laws and regulations.
  • Encouraged the idea of joint forest management.

(c) Conclusion

People’s movements like Chipko show that ordinary citizens can play a powerful role in conserving resources and protecting the environment through non-violent, collective action.

Ans.

(a) Meaning of non-conventional energy

Non-conventional or renewable energy sources include solar, wind, tidal, geothermal and biomass energy. They are inexhaustible and eco-friendly.

(b) Reasons to promote them in India

• Limited fossil fuels
  • Coal and petroleum reserves are limited and may get exhausted.
  • Renewable energy will reduce dependence on these exhaustible resources.
• Environmental benefits
  • Non-conventional sources produce less pollution and greenhouse gases.
  • Help in combating climate change and improving air quality.
• Energy security and rural development
  • India can use solar and wind energy in remote villages where grid power is unavailable.
  • Promotes decentralised energy systems and local employment.
• Abundant potential
  • India is a tropical country with high solar radiation and long coastline with wind potential.
  • This natural advantage must be utilised.

Thus, promoting non-conventional energy is essential for India’s sustainable and secure energy future.

Ans.

(a) Physical importance

• Base for life-support systems
  • Land supports soil, forests, water bodies and biodiversity which are essential for life.
• Varied relief
  • Plains, plateaus, mountains and deserts provide different opportunities and challenges.

(b) Economic importance

• Agriculture
  • A large part of India’s population depends on farming which requires fertile land.
• Forests and minerals
  • Forest land provides timber, fuelwood and minor forest products.
  • Mineral-rich land supports mining and industries.
• Settlements and infrastructure
  • Land is required for building houses, schools, roads, railways and industries.

(c) Conclusion

Therefore, land is a basic natural resource for both survival and development, and must be used with great care and planning in India.

Ans.

(a) Need for land use planning

• Land is limited and cannot be increased.
• There is pressure from agriculture, housing, industries, forests and infrastructure.
• Unplanned use leads to land degradation, deforestation and loss of biodiversity.

(b) Balanced use for different purposes

• Agriculture
  • Use fertile plains mainly for agriculture with proper crop rotation and irrigation.
• Forests
  • Maintain adequate forest cover in hilly and high-rainfall areas for soil and water conservation.
• Industries and urbanisation
  • Establish industries on wastelands or less fertile areas wherever possible.
  • Plan compact and efficient towns to reduce land consumption.
• Conservation areas
  • Protect ecologically sensitive zones like wildlife sanctuaries, wetlands and coastal areas.

Hence, land use planning ensures that land is used according to its capability and not misused, helping India achieve sustainable development.

Ans.

(a) Physical factors

• Topography
  • Flat and fertile plains → intensive agriculture (Indo-Gangetic plains).
  • Hilly regions → forests, plantations and grazing (Himalayas, Western Ghats).
• Climate
  • High rainfall → dense forests and crops like rice, tea (Assam, Kerala).
  • Arid climate → desert vegetation and sparse agriculture (Rajasthan).
• Soil
  • Alluvial soil → agriculture with variety of crops.
  • Rocky, shallow soil → limited cultivation and more grazing.

(b) Human factors

• Population density
  • High density areas use more land for housing and agriculture (plains of UP, Bihar).
• Technology and irrigation
  • Advanced irrigation makes arid areas cultivable (Punjab, Haryana canal irrigation).
• Culture and traditions
  • Some communities prefer pastoralism; others intensive farming.
• Government policies
  • Land reforms, forest policies and industrial policies affect land use.

Thus, land use pattern in India is the result of a complex interaction between nature and human decisions.

Ans.

(a) Main land use categories

• Forest area
• Land not available for cultivation (barren land and land put to non-agricultural uses)
• Other uncultivated land (permanent pastures, grazing land, miscellaneous tree crops)
• Fallow land (current fallow and other than current fallow)
• Net sown area

(b) Changes over time (general trends)

• Forest area
  • Has increased slightly due to afforestation and forest conservation programmes.
  • Still less than the desired 33% forest cover.
• Net sown area
  • Expanded initially due to bringing more land under cultivation.
  • Now almost stagnant because there is little scope for further expansion.
• Fallow land
  • Decreasing in some regions due to use of fertilisers and improved irrigation.
  • However, still remains significant where land needs rest or farmers lack resources.

These changes show the need to now focus on improving productivity rather than expanding cultivated area.

Ans.

(a) Net sown area

• Total area actually sown with crops in a year.
• If a field is sown even once, it is counted only once in net sown area.

(b) Gross cropped area

• Total area sown once plus the area sown more than once in a year.
• If a field is sown twice, it is counted twice in gross cropped area.

(c) Cropping intensity

• Cropping intensity = (Gross cropped area ÷ Net sown area) × 100.
• Indicates how many times a piece of land is cropped in a year on average.

(d) Importance of these indicators

• They show the extent of land under agriculture.
• Higher cropping intensity indicates better use of land and irrigation facilities.
• Help in planning fertiliser use, irrigation and agricultural development.

Ans.

(a) Reasons for increase in non-agricultural land use

• Urbanisation: Expansion of towns and cities for housing, offices and services.
• Industrialisation: Establishment of factories, industrial estates and special economic zones.
• Infrastructure development: Construction of roads, railways, airports, dams and power plants.
• Institutional uses: Land needed for schools, colleges, hospitals and government buildings.
• Mining and quarrying: Extraction of minerals requires land for mines and waste dumps.

(b) Effects on land resources

• Reduces the area available for agriculture and forests.
• Can lead to deforestation, soil erosion and loss of biodiversity if not planned properly.
• Increases land values and conflicts over land acquisition.

Therefore, expansion of non-agricultural uses must be planned carefully to avoid irreversible damage to land resources.

Ans.

(a) Current fallow land

• Land left uncultivated for less than one agricultural year.
• Farmers may do this due to lack of water, inputs or to rest the soil.

(b) Other than current fallow land

• Land left uncultivated for 1 to 5 years.
• Done when soil is exhausted or farmers lack resources for continuous cultivation.

(c) Need to leave land fallow

• Helps soil to regain fertility naturally.
• Reduces the risk of pest build-up and soil-borne diseases.
• Important in regions with low rainfall where continuous cropping is not possible.

Thus, fallow land is not always a sign of waste; it can be a traditional method of soil conservation.

Ans.

(a) Meaning

Land degradation is the decline in the quality and productivity of land due to natural or human factors.

(b) Human activities causing land degradation

• Deforestation
  • Cutting of forests for agriculture, industries and urbanisation reduces tree cover.
  • Exposes soil to erosion by wind and water.
• Overgrazing
  • Excessive grazing by cattle, sheep and goats destroys grass cover.
  • Common in arid and semi-arid regions like Rajasthan and Gujarat.
• Mining activities
  • Open-cast mining leaves huge scars and heaps of waste on the land surface.
  • Found in states such as Jharkhand, Odisha and Chhattisgarh.
• Over-irrigation
  • Excessive use of canal irrigation leads to waterlogging and salinisation of soil.
  • Serious in Punjab, Haryana and western Uttar Pradesh.
• Industrial and urban waste
  • Dumping of solid waste and untreated industrial effluents pollutes land.
  • Plastics, chemicals and heavy metals make land unfit for agriculture.

These activities reduce the productivity of land and threaten food and livelihood security.

Ans.

Measures for land conservation:

• Afforestation and social forestry
  • Planting more trees and protecting existing forests.
  • Shelter belts and windbreaks help in stabilising soil.
• Controlled grazing
  • Regulating the number of animals and rotational grazing.
  • Prevents overuse of pastures and allows grasses to regenerate.
• Scientific irrigation practices
  • Avoid over-irrigation; use drip and sprinkler systems.
  • Helps in controlling waterlogging and salinisation.
• Reclamation of degraded land
  • Levelling of gullies, bunding and terracing on slopes.
  • Use of salt-resistant crops and application of gypsum in saline soils.
• Proper disposal and treatment of waste
  • Scientific management of industrial and urban waste.
  • Recycling, composting and strict enforcement of pollution laws.

With these measures, land resources can be protected and improved for sustainable use.

Ans.

(a) Land degradation as a threat to food security

Land degradation reduces the fertility, depth and moisture-holding capacity of soil, leading to lower crop yields. This directly affects food production in a country like India.

(b) Causes affecting food security

• Deforestation and soil erosion in hilly areas reduce cultivable land.
• Salinisation and waterlogging make fertile land unproductive.
• Industrial pollution and waste dumping damage soil health.

(c) Consequences

• Decline in foodgrain production and increased dependence on food imports.
• Higher cost of cultivation due to more fertilisers and soil treatments.
• Adverse impact on farmers’ income and rural livelihoods.

Therefore, controlling land degradation is essential to ensure food security and rural development in India.

Ans.

(a) Arid and semi-arid regions

• States like Rajasthan and Gujarat face land degradation due to overgrazing and wind erosion.
• Measures: Planting shelter belts, afforestation, stabilising sand dunes with grasses.

(b) Canal irrigated regions

• Regions of Punjab, Haryana and western Uttar Pradesh suffer from waterlogging and salinisation.
• Measures: Lining canals, improving drainage, using drip irrigation.

(c) Mining regions

• Mining areas in Jharkhand, Chhattisgarh and Odisha have land scars and mine dumps.
• Measures: Land reclamation, afforestation and proper disposal of overburden.

Thus, land degradation varies from region to region and requires area-specific conservation strategies.

Ans.

(a) Meaning of soil

Soil is the uppermost, loose layer of the earth’s crust composed of minerals, organic matter, air, water and living organisms which supports plant growth.

(b) Factors of soil formation

• Parent rock
  • Determines soil’s mineral composition and texture.
  • Example: Basaltic rock forms black soil; alluvium forms alluvial soil.
• Climate
  • Temperature and rainfall control the rate of weathering and humus formation.
  • Heavy rainfall → intense leaching and laterite soil.
• Relief (topography)
  • Steep slopes → thin soil due to erosion.
  • Plains → thick, deep soils due to deposition.
• Flora and fauna
  • Plants add organic matter; roots help in weathering rock.
  • Microorganisms decompose organic matter to form humus.
• Time
  • Soil formation is a slow process; mature soils develop over thousands of years.
  • Older soils show well-developed horizons (layers).

Each factor contributes to the colour, texture, depth and fertility of the soil found in a region.

Ans.

(a) Soil as a renewable resource

• Soil is formed by weathering of rocks and decomposition of organic matter.
• Plants and animals continuously add organic material to soil.
• Therefore, soil can be renewed over long periods of time and is considered renewable.

(b) When soil acts as a limited resource

• Soil formation is a very slow process, while soil erosion can be rapid.
• If soil is eroded or degraded faster than it is formed, it behaves like a non-renewable resource.
• Deforestation, overgrazing and unscientific farming make soil loss permanent in human time-scales.

Thus, although technically renewable, soil must be treated as a precious and limited resource which needs careful conservation.

Ans.

(a) Formation and distribution

• Formed by the deposition of alluvium brought by rivers.
• Found extensively in the northern plains (Indus, Ganga, Brahmaputra basins) and in coastal plains.

(b) Characteristics

• Generally deep and fertile, with good moisture-retaining capacity.
• Rich in potash and lime but may be low in phosphorous.
• Two types: Bangar (old alluvium) and Khadar (new alluvium).

(c) Agricultural importance

• Suitable for growing rice, wheat, sugarcane, pulses, oilseeds and jute.
• Flat topography and availability of irrigation make intensive farming possible.

Hence, alluvial soil is considered the most important soil type for Indian agriculture.

Ans.

(a) Black soil

• Formation: From weathering of volcanic rocks (basalt) in the Deccan plateau.
• Features: Dark colour, fine texture, high clay content, good moisture retention, develops cracks when dry.
• Regions: Maharashtra, Madhya Pradesh, parts of Gujarat, Andhra Pradesh and Karnataka.
• Crops: Ideal for cotton; also supports sugarcane, soyabean, wheat and pulses.

(b) Laterite soil

• Formation: In areas of high temperature and heavy rainfall due to intense leaching.
• Features: Reddish-brown, rich in iron and aluminium, low in humus, generally less fertile.
• Regions: Parts of Karnataka, Kerala, Tamil Nadu, Madhya Pradesh and hilly areas of Odisha and Assam.
• Crops: With proper manuring, supports tea, coffee, rubber and cashew.

Thus, while black soil is naturally fertile and ideal for cotton, laterite soils need careful management and fertilisation but are useful for plantation crops.

Ans.

(a) Meaning

Soil erosion is the removal and transportation of the top fertile layer of soil by agents such as water and wind.

(b) Types of soil erosion

• Sheet erosion
  • Uniform removal of soil in thin layers by running water over a large area.
• Rill erosion
  • Water flows in small channels or rills, cutting into the soil surface.
• Gully erosion
  • Deep cuts or gullies formed when rills deepen; common in the Chambal basin.
• Wind erosion
  • Wind blows away loose and dry soil, especially in desert and semi-desert regions.

(c) Soil conservation measures

• Contour ploughing
  • Ploughing along the contour lines of a slope to slow down water flow and reduce erosion.
• Terrace farming
  • Making terraces on steep slopes to form flat surfaces for cultivation, reducing run-off.
• Strip cropping
  • Growing crops in alternate strips of grasses or cover crops to break the force of wind and water.
• Afforestation and shelter belts
  • Planting trees and shrubs to bind the soil and reduce wind speed.
  • Shelter belts of trees are very effective in arid regions.

By adopting these measures, the problem of soil erosion can be controlled and soil fertility preserved for sustainable agriculture.