COMPLETE GEOGRAPHY NOTES

Class 10 CBSE (2025-26) • Detailed & Exam Focused

Created by Team Vardaan

1. What is a Resource?

Everything available in our environment which can be used to satisfy our needs, provided it is technologically accessible, economically feasible, and culturally acceptable.

2. Classification of Resources

• On basis of Origin:
  • Biotic: Obtained from biosphere, have life (Flora, Fauna, Human beings).
  • Abiotic: Composed of non-living things (Rocks, Metals).
• On basis of Exhaustibility:
  • Renewable: Can be renewed by physical/chemical/mechanical processes (Solar, Wind, Water, Forest).
  • Non-Renewable: Take millions of years to form. Exhaustible (Minerals, Fossil Fuels).
• On basis of Ownership:
  • Individual: Owned privately (Plots, House, Car).
  • Community: Accessible to all members (Grazing grounds, Ponds, Parks).
  • National: Technically all resources belong to the nation. Govt can acquire land for public good (Roads, Railways). Territorial water up to 12 nautical miles (22.2 km).
  • International: Regulated by international institutions. Oceanic resources beyond 200 nautical miles (Exclusive Economic Zone) belong to open ocean.
• On Status of Development:
  • Potential: Found in a region but not utilized (e.g., Solar/Wind in Rajasthan/Gujarat).
  • Developed: Surveyed and quality/quantity determined for utilization.
  • Stock: Potential to satisfy needs but lack technology to access (e.g., Hydrogen in water as fuel).
  • Reserves: Subset of stock. Can be used with existing tech but use has not started (e.g., Water in dams for future).

3. Resource Planning in India

Resource planning is a complex process involving:

1. Identification: Surveying, mapping, and qualitative/quantitative estimation of resources.
2. Planning Structure: Evolving a structure with appropriate technology, skill, and institutional setup.
3. Matching: Coordinating resource development plans with overall national development plans.

Conservation: "There is enough for everybody's need and not for any body's greed" - Mahatma Gandhi.

4. Land Degradation & Conservation

5. Soil Types (Very Important)

Soil Type	Features	Crops & Regions
Alluvial Soil	• Most widespread (Northern Plains). • Deposited by Indus, Ganga, Brahmaputra. • Rich in Potash, Phosphoric Acid, Lime. • Khadar: New, fertile, fine particles. • Bangar: Old, less fertile, 'Kankar' nodules.	Paddy, Wheat, Sugarcane. Northern Plains, Eastern Coastal Deltas.
Black Soil (Regur)	• Black in colour. • Clayey, holds moisture well. • Rich in Calcium Carbonate, Mg, Potash. • Poor in Phosphoric content. • Develops deep cracks in hot weather (Self-aeration).	Cotton. Deccan Trap (Basalt) region: Maharashtra, Saurashtra, Malwa, MP, Chhattisgarh.
Red & Yellow	• Red due to diffusion of iron in crystalline igneous rocks. • Yellow when hydrated.	Odisha, Chhattisgarh, Southern Ganga Plain, Western Ghats piedmont.
Laterite Soil	• Derived from 'Later' (Brick). • Result of Intense Leaching due to heavy rain. • Acidic (pH < 6.0), low humus.	Tea, Coffee, Cashew nut. Karnataka, Kerala, TN, MP, Hilly Odisha/Assam.
Arid Soil	• Red to Brown. • Sandy texture, Saline nature. • Lacks humus and moisture.	Barley, Maize (requires irrigation). Western Rajasthan.

1. IUCN Classification of Species

• Normal: Population levels normal (Cattle, Sal, Pine).
• Endangered: Danger of extinction (Black Buck, Crocodile, Indian Wild Ass, Indian Rhino).
• Vulnerable: Likely to become endangered if negative factors continue (Blue Sheep, Asiatic Elephant, Gangetic Dolphin).
• Rare: Small population (Himalayan Brown Bear, Desert Fox).
• Endemic: Found ONLY in specific areas (Andaman Teal, Nicobar Pigeon, Mithun in Arunachal).
• Extinct: Not found after searches (Asiatic Cheetah, Pink Head Duck).

2. Conservation Strategies in India

Project Tiger (1973):

One of the most well-publicised wildlife campaigns. Key Reserves:

• Corbett National Park - Uttarakhand
• Sunderbans National Park - West Bengal
• Bandhavgarh National Park - Madhya Pradesh
• Sariska Wildlife Sanctuary - Rajasthan
• Manas Tiger Reserve - Assam
• Periyar Tiger Reserve - Kerala

3. Types of Forests

1. Reserved Forests: More than half of forest land. Most valuable for conservation. (J&K, Andhra, Kerala, TN, WB, Maharashtra).
2. Protected Forests: 1/3rd of total area. Protected from further depletion. (Bihar, Haryana, Punjab, HP, Odisha, Rajasthan).
3. Unclassed Forests: Belong to both govt and private individuals/communities. (North-Eastern states, parts of Gujarat).

4. Community and Conservation

• Bishnois (Rajasthan): Protect Blackbuck, Nilgai, Peacocks as part of community.
• Chipko Movement (Himalayas): Resisted deforestation.
• Beej Bachao Andolan (Tehri): Saved indigenous seeds without chemicals.
• JFM (Joint Forest Management): Involves local communities in management of degraded forests. Odisha passed the first resolution in 1988.

1. Water Scarcity

Quantitative: Over-exploitation, excessive use, unequal access to water.

Qualitative: Bad quality. Polluted by domestic/industrial wastes, chemicals, pesticides (e.g., Ganga, Yamuna).

2. Multi-purpose River Projects (Dams)

Called "Temples of Modern India" by Jawaharlal Nehru.

3. Rainwater Harvesting Techniques

• Guls / Kuls: Diversion channels in Western Himalayas for agriculture.
• Rooftop Harvesting: Common in Rajasthan (Shillong too). Rainwater stored in underground Tankas for drinking ('Palar Pani').
• Inundation Channels: Bengal (Irrigation).
• Khadins / Johads: Arid Rajasthan (Agricultural fields converted to rain-fed storage structures).
• Bamboo Drip Irrigation: Meghalaya (200-year-old system).

Fact: Tamil Nadu is the first state to make rooftop rainwater harvesting compulsory.

1. Types of Farming

• Primitive Subsistence: Slash & burn. Low productivity. Tools: Hoe, Dao. (Jhumming in NE, Dipa in Bastar).
• Intensive Subsistence: High population pressure on land. Labour intensive. High doses of biochemicals.
• Commercial: Use of modern inputs (HYV seeds, fertilizers) for higher productivity. E.g., Rice in Punjab.
• Plantation: Single crop on large area. Capital intensive. Migrant labour. (Tea in Assam, Coffee in Karnataka).

2. Cropping Pattern

• Rabi: Sown in Winter (Oct-Dec), Harvested in Summer (Apr-Jun). Crops: Wheat, Barley, Peas, Gram, Mustard.
• Kharif: Sown with onset of Monsoon (June-July), Harvested in Sept-Oct. Crops: Paddy, Maize, Jowar, Bajra, Cotton, Jute, Groundnut.
• Zaid: Short season between Rabi and Kharif (Summer). Crops: Watermelon, Muskmelon, Cucumber, Fodder.

3. Major Crops (Geographical Conditions)

Crop	Temp & Rain	Soil & Top States
Rice (Kharif)	High Temp (>25°C), High Humidity, >100cm rain.	Alluvial / Clayey. WB, UP, Punjab (via irrigation).
Wheat (Rabi)	Cool growing season, Bright sunshine. 50-75cm rain.	Loamy / Alluvial. UP, Punjab, Haryana.
Millets (Coarse Grains)	Can grow in dry regions. Jowar, Bajra, Ragi.	Ragi: Red/Black/Sandy. Maharashtra, Karnataka, Rajasthan.
Sugarcane	Hot & Humid (21-27°C). 75-100cm rain.	UP, Maharashtra, Karnataka.
Cotton	High temp, light rain. 210 Frost-free days.	Black Soil. Maharashtra, Gujarat.
Tea	Warm, moist, frost-free climate. Frequent showers.	Well-drained, rich in humus. Assam, Darjeeling (WB).

4. Reforms

• Institutional: Abolition of Zamindari, Consolidation of holdings, Crop Insurance. Bhoodan-Gramdan (Vinoba Bhave).
• Technological: Green Revolution (HYV seeds), White Revolution (Milk).
• Financial: KCC (Kisan Credit Card), PAIS, Minimum Support Price (MSP).

1. Occurrence of Minerals

• Igneous/Metamorphic: In cracks/faults. (Veins & Lodes). E.g., Copper, Zinc, Lead.
• Sedimentary: In beds/layers. E.g., Coal, Iron ore, Gypsum.
• Decomposition: Removal of soluble constituents. E.g., Bauxite.
• Alluvial Deposits: Placer deposits (corrode free). E.g., Gold, Silver.

2. Classification of Minerals

3. Energy Resources

1. Importance

Manufacturing is the backbone of development. It modernises agriculture, reduces dependence on agricultural income, eradicates unemployment/poverty, and brings foreign exchange.

2. Location Factors

Raw material, Labour, Capital, Power, Market. (Ideal Location = Lowest Cost).

3. Major Industries

Industry	Key Points
Cotton Textile	Agro-based. Concentrated in Maharashtra/Gujarat (Black soil, humid climate, port).
Jute Textile	Concentrated in Hugli Basin, WB (Raw jute, water transport, cheap labour). India is largest producer.
Sugar	Shifting to Maharashtra/South (Cane has higher sucrose content in cooler climate, Cooperatives successful).
Iron & Steel	Mineral-based. Heavy industry. Concentrated in Chotanagpur Plateau (Low cost iron ore, high grade raw material, cheap labour).
IT & Electronics	Bengaluru is Electronic Capital. Employment generation is high (BPO).

4. Industrial Pollution

• Air: SO2, CO. Smoke stacks.
• Water: Organic/Inorganic wastes dumped in rivers.
• Thermal: Hot water kills aquatic life.
• Noise: Machinery causing hearing impairment.

A. National Highways

• Golden Quadrilateral: Delhi - Kolkata - Chennai - Mumbai.
• North-South Corridor: Srinagar (J&K) to Kanyakumari (TN).
• East-West Corridor: Silchar (Assam) to Porbandar (Gujarat).

B. Major Sea Ports (West to East)

1. Kandla (Deendayal) - Gujarat (Tidal Port).
2. Mumbai - Maharashtra (Biggest).
3. Marmagao - Goa (Iron ore export).
4. New Mangalore - Karnataka (Kudremukh iron ore).
5. Kochi - Kerala (Lagoon harbour).
6. Tuticorin - Tamil Nadu (Natural harbour).
7. Chennai - Tamil Nadu (Oldest artificial).
8. Visakhapatnam - Andhra Pradesh (Deepest landlocked).
9. Paradwip - Odisha (Iron ore).
10. Haldia - West Bengal (Riverine port).

C. International Airports

• Amritsar: Raja Sansi (Sri Guru Ram Dass Jee).
• Delhi: Indira Gandhi International.
• Mumbai: Chhatrapati Shivaji Maharaj.
• Chennai: Meenambakkam.
• Kolkata: Netaji Subhash Chandra Bose.
• Hyderabad: Rajiv Gandhi.