Friday, May 21, 2021

HUMAN ENVIRONMENT, SETTLEMENT, TRANSPORTS AND COMMUNICATION

 

 

CLASS-VII GEOGRAPHY

CHAPTER 7.        HUMAN ENVIRONMENT, SETTLEMENT, TRANSPORTS AND COMMUNICATION

 

SETTLEMENTS

        Where people built homes

        Earlier on trees and caves

        Then permanent houses

        Mainly near rivers, fertile areas and near water sources

        Slowly became large

 

TYPES OF SETTLEMENTS

        Temporary: Occupied for short period of time – forests, deserts, mountains – Hunting, shifting cultivation, Transhumance (seasonal movement of people)

        Permanent:

        Rural: Compact (closely built) or scattered (extensive)

        Scattered in Hills and Extensive forests

        Slanting roof: Rainy areas

        Stilts: Accumulation of water in rains

        Hot areas: Thick mud wall with thatched roofs

        Urban: Towns (small), Cities (large)

 

TRANSPORT

        Means by which people and goods move

        Earlier- Walked and animals carried goods (donkeys, mules, camels, and bullocks, S. America – Liamas, Tibet – Yaks)

        Later- Invention of wheel

        Roadways

        Railways

        Airways

        Waterways

ROADWAYS

        Most common for short distances

        Metalled (pucca)

        Unmetalled (kutcha)

        Subways (underpath)

        Flyover – Above the structure

        Manali – Leh highway (amongst world’s highest roadways)

 

RAILWAYS

        Over long distances

        Cheaper method

        Steam engine- industrial revolution

        Diesel and Electric Engines

        Superfast trains

        India rail network is longest in Asia

 

 

        Trans- Siberian Railway- longest in world: from St. Petersburg to Vladivostok- Russia

 

WATERWAYS

        Cheapest to carry goods for long distances

        Inland water ways – Navigable rivers (Ganga- Brahmaputra; Nile-Africa) and lakes (Grand lakes – N.America - USA)

        Sea routes- from one country to another

        Major ports- Mumbai, Los angels, Singapore, Sydney, Rotterdam

 

AIRWAYS

        Fastest means of transport

        Expensive- higher cost of fuels

        Affected by fog and storms

        For inaccessible areas (helicopters)

        In natural calamities – to rescue and provide food

 

COMMUNICATION

        Process of conveying messages

        Messages by birds

        postal system

        Print media

        Electronic media – e-mails, internet

        Mass media – communicate to large no. of people- NP, TV, Radio

        Satellites- for faster communication- for oil exploration, forest, water, minerals, weather, disaster warning

        Wireless communication: cellular phones

 

 

 

 

THE END

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