GEOGRAPHY AND HISTORY

  Meaning of remote sensing Remote sensing is the Collection of data by a recording device that is not in direct contact with the area. Examples: Satellites, aircraft, drones, and aerial photographs types of remote sensing active remote sensing - this involves sending radiation out and then measuring the radiation that the earth is sending back e.g ocean current passive remote sensing - measures the energy that is radiated from the earth e.g temperature ADVANTAGES OF REMOTE SENSING: Allows coverage of very large areas. Can access inaccessible areas. Easy collection of data over a variety of scales and resolutions. There is no limitation on the extent of information that can be gathered from a single remotely sensed image. Data can easily be processed and analysed fast using a computer. Does not disturb the object or the area of interest. Cheap and fast method of collecting data of large areas. It is easier to locate floods or forest fire that has spread over a large region which...

  a) Name three types of geographical photographs . b) Specify the type of geographical  photograph which is : taken horizontally on ground used in map making c) Explain five differences between the photograph which you have mentioned in (b)(ii) above and the topographical map ANSWER: a) Types of the geographical photographs are : Horizontal or ground photograph Oblique photograph Vertical photograph b) (i) Type of photography which is taken horizontally on the ground is horizontal photograph   (ii)  Type of photograph which is used in map-making is a vertical aerial photograph c)the following are five differences between the photograph mentioned in (b)(ii) which is a vertical aerial photograph and topographical map. Vertical aerial photograph show all features found on the site while topographical map is selective since it can show either physical or man made features. The scale of topographical map is constant throughout while that of vertical aerial photograph...