Geography Questions and Answers - Form 2 Mid Term 2 2022

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Answer all the questions in the spaces provided on this paper.


QUESTIONS

  1.                          
    1. Name the instruments used to measure the following elements of weather.
      1. Air pressure (1 mk)
      2. Duration of sunshine (1 mk)
    2. Briefly explain how relative humidity is calculated. (2 mks)
  2.                    
    1. Give two examples of extrusive igneous rocks. (2 mks)
    2. Name the type of changes undergone by rocks in metamorphism. (2 mks)
  3.                        
    1. Identify the factors which influence folding. (2 mks)
    2. Apart from fold mountains, name two features resulting from folding. (2 mks)
  4.                          
    1. Mention two modern methods of showing direction. (2 mks)
    2. What is magnetic variation? (1 mk)
    3. Other than the Equator, name three other important latitudes. (3 mks)
  5. The diagram below is an illustration of the grid reference system.  Use it to answer the questions that follow.
    5 SFSFS
    1. What is the name given to the lines numbered 45 – 51? (1 mk)
    2. Give the four figure grid reference of points Q and R. (2 mks)
    3. Give six figure grid reference of points P and R. (2 mks)
  6. Study the table below and use it to answer the questions that follow.
    VALUE OF EXPORTS FROM (KSH MILLION)

    CROP

    1997

    1998

    1999

    2000

    2001

    Tea

    24000

    33000

    33000

    35000

    34000

    Coffee

    17000

    13000

    12000

    12000

    7000

    Horticulture

    14000

    15000

    18000

    21000

    20000

    Tobacco

    2000

    2000

    2000

    2000

    3000

    Total

    57000

    63000

    65000

    70000

    64000

     Using a vertical scale of 1cm to represent 5 billion, draw a comparative line graph to present the above data.  Use the graph paper provided. (7 mks)
    6 adadada


MARKING SCHEME

  1.                          
    1. Name the instruments used to measure the following elements of weather.
      1. Air pressure (1 mk) - barometer
      2. Duration of sunshine (1 mk)
    2. Briefly explain how relative humidity is calculated. (2 mks) - Campbell-Stokes sunshine recorder
  2.                    
    1. Give two examples of extrusive igneous rocks. (2 mks)
      pumice, obsidian, andesite, rhyolite, and basalt.
    2. Name the type of changes undergone by rocks in metamorphism. (2 mks)
      When rocks are buried deeply they are subjected to a great deal of pressure and heat. When that happens the minerals reorganize themselves to become different kinds of rocks. This is how we some of the gemstones like diamonds and garnets. If deep enough the rocks melt and start from scratch by recrystallizing. If they cool slow the crystals can grow very big. The type of crystals will depend on what the original rock was
      Common metamorphic rocks include phyllite, schist, gneiss, quartzite and marble.
  3.                        
    1. Identify the factors which influence folding. (2 mks)
      The nature of the rocks whether elastic or resistant to force.
      The amount of force exerted on the rocks./ Strength or intensity of the compressional force.
      Temperature within rocks/high
    2. Apart from fold mountains, name two features resulting from folding. (2 mks)
      Cuestas.
      Escarpments.
      Intermountain basins/ plateaus.
  4.                          
    1. Mention two modern methods of showing direction. (2 mks)
      the use of the compass direction
      Use of magnetic compass which has a bearing
      maps
    2. What is magnetic variation? (1 mk)
      In navigation, at a given place and time, the horizontal angle between the true north and magnetic north measured east or west according to whether magnetic north lies east or west of true north.
    3. Other than the Equator, name three other important latitudes. (3 mks)
      Tropic of Cancer (Latitude 23.5oN)
      Tropic of Capricorn (Latitude 23.5oS)
      Arctic Circle (Latitude 66.5oN).
      Antarctic Circle (Latitude 66.5oS).
  5. The diagram below is an illustration of the grid reference system.  Use it to answer the questions that follow.
    5 SFSFS
    1. What is the name given to the lines numbered 45 – 51? (1 mk)
      eastings
    2. Give the four figure grid reference of points Q and R. (2 mks)
      REM: Easting:Northing
      Q 4823
      R 50258
    3. Give six figure grid reference of points P and R. (2 mks)
      P 475244
      R 500258
  6. Study the table below and use it to answer the questions that follow.
    VALUE OF EXPORTS FROM (KSH MILLION)

    CROP

    1997

    1998

    1999

    2000

    2001

    Tea

    24000

    33000

    33000

    35000

    34000

    Coffee

    17000

    13000

    12000

    12000

    7000

    Horticulture

    14000

    15000

    18000

    21000

    20000

    Tobacco

    2000

    2000

    2000

    2000

    3000

    Total

    57000

    63000

    65000

    70000

    64000

     Using a vertical scale of 1cm to represent 5 billion, draw a comparative line graph to present the above data.  Use the graph paper provided. (7 mks)
    6 adadada

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