Question 4
-
(a) Explain the term land tenure system. (2 marks)
(b) Define the term weed. (2 marks)
(c) Discuss groundnut rosette disease under the following headings:
(i) causal organism;
(ii) mode of transmission;
(iii) two symptoms;
(iv) two control measures. (6 marks)
(d) State four characteristics of each of the following factors of production:
(i) land
(ii)capital (8 marks)
Observation
- Question 4(a) and (b) was popular among many candidates but responses on the discussion of groundnut rosette disease was poor.
The expected answers include:
4. (a) Explanation of land tenure system
It refers to the system of land ownership/acquisition by individuals or groups for
temporary or permanent use.
(b) Definition of weed
A weed is any plant found growing in a place where it is not wanted/desired
(c ) Discussion of groundnut rosette disease
(i) Causal organism
-Virus
(ii) Mode of transmission
- By insect vector called aphid
(iii) Symptoms
- Stunted growth
- Leaves turn yellow with mosaic form of mottling
- Leaves become closely packed and curled
(iv) Control
- Early planting
- Plant resistant varieties
- Uproot and burn infected plants
- Use insecticide to kill aphids
- Practise close spacing
(d) Characteristics of factors of production
(i) Land
- Immobile/fixed in supply
- Subject to the law of diminishing returns
- Its reward is rent
- It is a fixed asset
- Its value is based on its location
- Its unit is acres/hectares
- It is a free gift of nature
- It is heterogeneous in nature
- It appreciates/depreciates over time
(ii) Capital
- It takes different forms e.g. machinery, agro-chemicals
- It can depreciate/appreciate over time
- It could be fixed or working capital
- The reward of capital is interest
- It is man-made and is accumulated over time
- It can be used to acquire other factors e.g. land and labour