Geography Questions and Answers - Form 3 Term 1 Opener Exams 2021 ^Featured

1.  
   1.  
      1. Differentiate between indigenous and exotic forests (2marks)
      2. Give three western rain forests found in Kenya (3marks)
   2.  
      1. State three measures that have been taken to conserve forests in Kenya. (3 marks)
      2. Explain two factors which favor the development of softwood forests in Canada. (4 marks)
      3. Compare and contrast the softwood forests in Kenya and Canada under the following sub-headings
         1. Maturity
         2. Transport of logs
         3. Type of forests
2. The table below shows the value of the main mineral exports from Kenya in the year 2016 in Kshs million.
   

   Mineral	Value in Kshs Million
   Titanium ore	13,300
   Rutile	6,800
   Soda ash	6,200
   Ilmenite	3,400
   Zircon	3,000
   Gemstones	930

   1.  
      1. Using a radius of 5 cm, draw a pie chart to represent the data above. (10 Marks)
      2. Calculate the percentage of the leading mineral export by value in year 2016. [2mks]
   2.  
      1. State three disadvantages of using pie-charts to present statistical data (3mks)
      2. State two characteristics of compound bar graph. (2mks)
3.   
   1. Give two ways that can be used to locate a place on a topographical map.(2mks)
   2. Give three methods that are commonly used to represent relief on topographical map.(3mks)
4.  
   1. With the use of a well labeled diagram, show how the following features are presented on a topographical map: (6mks)
      1. A ridge
      2. A hill
      3. Plain
   2. Name four drainage patterns on topographical maps. (4mks)

Marking Scheme

1.  
   1.  
      1. Differentiate between indigenous and exotic forests (2mks)
         • Indigenous forests are made up of trees that are native to a country while exotic forests are made of trees that are alien to a country or region.
      2. Give three western rainforests found in Kenya (3mks)
         • Mount elgon forest
         • Kakamega forest
         • North and south Nandi forests
         • Gwasi hills forest
   2.  
      1. State three measures which have been taken to conserve forests in Kenya (3mks)
         • planting trees where some have been cut down (reafforestation progammes)
         • Planting trees where non existed(Afforestation)
         • Setting up presidential commission
         • Setting up of Nyayo tea zones
         • Intercropping of crops with trees (agroforestry)
         • creation of forests reserves community participation
      2. Explain two factors which favour the development of soft wood in Canada (4mks)
         • heavy rainfall on the windward slopes of the mountain ranges of British Columbia encourages forest growth
         • low population density that has left land available for the establishment of forests.
         • some areas have rugged and steep landscape this discouraging agriculture and settlement hence land is available for the establishment of trees
         • Canada experiences cool to cold climate which favours the growth of trees
      3. Compare the softwood forests in Kenya and Canada, under the following sub- headings (6mks)
         1. Maturity
            • Growth of trees in Canada matures slowly due to low temperatures while growth of trees in Kenya matures faster due to high temperatures
         2. Transport of logs
            • In Kenya, workers are transported daily to the logging sites while in Canada logging involves setting up a settlement for the workers within a region to be harvested.
            • Transportation of logs in Kenya is by tractors and lorries while in Canada are transported by floating them on water (river)
         3. Type of forest
            • Softwood forest in Kenya are mainly planted while softwood forest in Canada are natural
2.  
   1. 1.  
         
      2. Calculate the percentage of leading mineral export by value in year 2016 (2mks)
         leading x 100 13300-930 =12370
         original
         12370 x 100 = 93%
         13300
   2.  
      1. State three disadvantages of using pie charts to present statistical data (3mks)
         • are time consuming due to calculation and measurement of angles
         • pie charts having very small values may be difficult to accurately represent
         • actual values represented by each component cannot be known.
      2. State two characteristics of compound bar graphs (2mks)
         • are made of two or more bars drawn vertically
         • bars are subdivided into various segments
         • different variables can be presented on one bar
3.   
   1. Give two ways that can be used to locate a place on a topographical map (2mks)
      • use of place names
      • use of direction, bearing and distance
      • Use of latitudes and longitudes
      • Use of grid references
   2. Give three methods that are commonly used to represent relief on topographical map (2mks)
      • spot heights
      • trigonometric stations
      • Contours and form lines
4.  
   2. Name four common drainage patterns on topographical maps (4mks)
      • topographical maps
      • dendritic drainage pattern
      • trellis drainage pattern
      • radial drainage pattern
      • fault guided drainage pattern