Question 1
- Define a forest.
- State four characteristics of planted forest
Answer
- It is a continuous growth of tree and undergrowths covering a large area/track of a land. Or Plantation of tree growing close together on large track of land.
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- Fast maturing hence more profitable to plant and exploit.
- Normally it is in vows hence easy to maintain and exploit.
- Grows uniformly since they are grown at the same time hence easy to exploit using cutting way method.
- Trees of some species hence easy to exploit.
Question 2
- State three reasons why paper milling industries are located near rivers
- Name two industries in Kenya that use agricultural non-products as raw materials.
Answer
-
- The industries need large amount of water for cleaning.
- The industries use water for cooling machines.
- The industries dispose off their waste material through water.
- Water provide cheap means of transport. -
- Tobacco processing.
- Pyrethrum processing.
- Textile industry/plant fibre processing
Question 3
- State three factors that influenced the location of Perkerra Irrigation Scheme
- Name two rivers used for irrigation in Mwea Tebere Irrigation Scheme.
Answer
-
- To utilize the excess water of river Perkerra which used to go to waste.
- To control the seasonal floods of river Perkerra.
- Presence of flat and gently sloping terrain which enables easy flow of by gravity -
- R. Nyamindi.
- R. Thiba.
- R. Murubara
Question 4
- What is a manufacturing industry
- State three main characteristics of cottage industries in Kenya
Answer
- The process in which an industry changes raw materials into other semi-processed or finished products
-
- Use of locally available materials to make various products.
- Involves using hands and simple tools to make products.
- Acquisition of skills informally to make products.
- Mainly found in urban centres and others in rural areas.
Question 5
- Apart from pollution, name two other environmental hazards
experienced in Kenya.
- State three ways in which industrial pollution is health hazard
Answer
-
- Floods.
- Lighting
- Windstorms -
- Some industries emit toxic gases such as sulphur dioxide which is harmful to people lives
- Pollution leads to formation of acid rain which damage vegetation and aquatic organisms.
- Heavy smoke from industries lead to formation of smog which is harmful to peoples health.
- Industrial effluents promotes the rivers and lakes making the water unfit for use by man.