(a) What is an age-sex pyramid. (2 marks)
(b) State two complication of an age sex pyramid with a narrow baze. (2 marks)
4 marks
2.
(a) State three methods used to control tse-tse fly in Lambwe valley in Kenya. (3 marks)
(b) Name two main non renewable sources of energy. (2 marks)
5 marks
3.
(a) State four characteristics of tropical hardwood forests. (4 marks)
(b) What is agro forestry? (2 marks)
6 marks
4.
(a) State the local names for tropical cyclones in the following regions. (3 marks)
(i) Far East
(ii) Australia
(iii) North America
(b) Name three main sources of water pollution. (3 marks)
5 marks
5.
(a) What is industrial Inertia. (2 marks)
(b) Outline two causes of Industrial Inertia. (2 marks)
4 marks
SECTION B (75 Marks)
Answer question 6 and any other two questions.
6.
(a) The table below shows crop production in Kenya for a period of five years.
YEAR/CROP
2007
2008
2009
2010
2011
MAIZE
PEAS
ONIONS
CABBAGES
600
400
300
100
800
600
400
200
700
400
300
200
800
700
600
400
600
400
300
200
(i) Using a scale of 1cm to represent 200 present the above data using a compound bar graph. (9 marks)
(ii) State three advantages of using the above method to present data. (3 marks)
(b) (i) List four conditions that favour the growth of palm oil in Nigeria. (4 marks)
(ii) Name two methods of harvesting palm oil. (2 marks)
(iii) Give two uses of palm oil. (3 marks)
(iv) Outline four reasons that have contributed to decline of palm oil in Nigeria.(4 marks)
25 marks
7.
(a) What is fishing? (1 mark)
(b) Explain four factors that influence fishing. (8 marks)
(c) (i) List three traditional methods of fishing. (3 marks)
(ii) Outline three reasons why sea water fishing is not highly developed along the Indian Ocean
Coast. (3 marks)
(d) (i) Explain three reasons why Japan is a leading fishing nation. (6 marks)
(ii) Identify four measures undertaken by the government of Kenya to manage and conserve
fisheries. (4 marks)
25 marks
8.
(a) State two characteristics of the following forms of internal trade.
(i) Wholesalers (2 marks)
(ii) Retailers (2 marks)
(b) Explain three factors influencing the exchange of goods and services. (6 marks)
(c) (i) Name two member states of the Economic community of West African States. (2 marks)
(ii) What are the three main objectives of the economic community of West African States?
(3 marks)
(iii) Identify three problems facing regional trading blocks. (3 marks)
(d) Students of Sasumua intend to carry out a field study on trade in a local shop.
(i) State three method the students could use to collect data during the study. (3 marks)
(ii) Formulate two hypoblasts for the field work. (2 marks)
(iii) State two problems they are likely to encounter during the study. (2 marks)
25 marks
9.
(a) (i) Define the term wildlife. (2 marks)
(ii) Name three natural habitats for wildlife. (3 marks)
(iii) Explain four problems facing wildlife conservation in Kenya. (8 marks)
(iv) State five significance of wildlife. (5 marks)
(b) (i) What is domestic tourism. (2 marks)
(ii) Explain five factors that hinder domestic tourism in Kenya. (5 marks)
25 marks
10.
(a) (i) Differentiate between the terms management and conservation in reference to the
environment. (2 marks)
(ii) State four consequences of environmental degradation. (4 marks)
b) (i) State four farming methods that help in soil conservation. (4 marks)
(ii) Explain four efforts being carried out to conserve natural resources. (8 marks)
c) List three environmental hazards. (3 marks)
d) State four negative effects of using plastic paper bags to the environment. (4 marks)
