(a)
Calculations on the tractor(i)
Useful life of the tractor: 2009 – 2000 = 9 years
(ii)
Salvage value of the tractor - D3, 000.00
(iii)
Total depreciation of the tractorTotal depreciation = Cost price of tractor - Salvage value of tractor
= D12,000.00 - D3,000.00 = D9,000.00
(b)
Description of terms(i)
Demand scheduleThis is a table showing the relationship between the price of a commodity and the quantity of the commodity demanded.
(ii)
Supply curveThis is a graph showing the relationship between the price of a commodity and the
quantity of the commodity supplied.
(c)
Agricultural extension agencies in West Africa- Agricultural Development Programme (ADP)
- Farm settlement scheme
- Agro-service centres
- Research institutes
- Universities of agriculture
- Colleges/schools/faculties of agriculture
- Ministries of agriculture
- Non-Governmental Organizations (NGOs)
- Cooperative societies
- Marketing boards
(d)
Ways through which soils are enriched with nitrogen- Symbiotic nitrogen fixation/planting of legumes
- Non-symbiotic nitrogen fixation
- Electrical discharge/lightning
- Ammonification/decomposition of organic matter
- Nitrification
- Application of organic manure
- Application of inorganic fertilizers
(b)
Description of terms(i)
Demand scheduleThis is a table showing the relationship between the price of a commodity and the quantity of the commodity demanded.
(ii)
Supply curveThis is a graph showing the relationship between the price of a commodity and the quantity of the commodity supplied.
(c)
Agricultural extension agencies in West AfricaAgricultural Development Programme (ADP)
Farm settlement scheme
Agro-service centres
Research institutes
Universities of agriculture
Colleges/schools/faculties of agriculture
Ministries of agriculture
Non-Governmental Organizations (NGOs)
Cooperative societies
Marketing boards
(d)
Ways through which soils are enriched with nitrogenSymbiotic nitrogen fixation/planting of legumes
Non-symbiotic nitrogen fixation
Electrical discharge/lightning
Ammonification/decomposition of organic matter
Nitrification
Application of organic manure
Application of inorganic fertilizers