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Download 8th Class Geography Notes (Unit-10) for Islamabad Model Schools and Colleges

Download 8th Class Geography Notes (Unit-10) for Islamabad Model Schools and Colleges

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Download 8th Class Geography Notes (Unit-10) for Islamabad Model Schools and Colleges


SHORT QUESTIONS


Write a short note on GPS.
·        It is a location system based on constellation of 24 satellites around earth at a height of 11000 Km.
·        It is widely used by the civilians and defence people to locate exact location of the objects.

What modern techniques are currently in use by the geographers?
·        Remote sensing.
·        Geographical Information System (GIS).
·        Aerial Photographs.
·        Satellites and their images.
·        Geographical Positioning System.
·        Computers.

Explain the usefulness of computers in geography.
·        Computers can generate multiple overlays that provide important clues about correlative factors affecting the environment.
·        Land use patterns, atmospheric patterns, population demerits, rapid development of spatial techniques are the things and studies that is done by the computers.

Write note on computer based models in geography.
·        Computers can generate multiple overlays that provide important clues about correlative factors affecting the environment.
·        Land use patterns, atmospheric patterns, population demerits, rapid development of spatial techniques are the things and studies that is done by the computers.

Name the tools used in remote sensing and GPS.
Components of GPS:
i)      Satellite
ii)     Ground Control Station
iii)    GPS receivers or units

Components of Remote Sensing:
i)      Cameras
ii)     Multiple scanners
iii)    Hyper spectral instruments







LONG QUESTION

Define Remote Sensing and elaborate how it works?
Remote sensing is sensing something from distance without physically touching it.
How it works:
·        It involves the detection of different electromagnetic radiations, which are being reflected and emitted or discharged from any understudy object on the Earth's surface.
·        This is followed by processing, analyzing and applying of information.

What is GIS? Explains the components of GIS in detail.
·        It is a tool that allows geographers and scientists from other disciplines to visualize data in several different ways in order to see patterns and relationship in a given area or subject.
·        These patterns generally appear on maps.
·        Geography means real-world (earth) where we live.
·        Information is facts, figures, statistics, data and information system means computer technology and its support infrastructure.
Components of GPS:
i)      Satellite
ii)     Ground Control Station
iii)    GPS receivers or units

Aerial photographs are an important tool of geographers. Explain.
·        A photograph taken from an aeroplane using a camera is termed as an aerial photograph.
·        Geographers take a lot of help from these photographs while studying the function, composition, operation, properties etc. of different objects.

                       

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Download Class Notes: Download 8th Class Geography Notes (Unit-10) for Islamabad Model Schools and Colleges
Download 8th Class Geography Notes (Unit-10) for Islamabad Model Schools and Colleges
Download 8th Class Geography Notes (Unit-10) for Islamabad Model Schools and Colleges
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