(a) State two advantages and two disadvantages of using biogas as a source of farm power. [ 4 marks ]
(b) Mention eight simple farm tools. [ 4 marks ]
(c) List two common storage structures and two processing structures that could be found on a farmstead in West Africa. [ 4 marks ]
(d) Explain the term denitrification. [ 2 marks ]
(e) Describe the following components of the soil:
(i) mineral matter;
(ii) organic matter. [ 4 marks ]
(a) Advantages and disadvantages of biogas as asource of farm power
Advantages
- It reduces environmental pollution
- It is easily controlled/easy to operate
- Animal dung is cheap
- Provides economic value to animal wastes/provides proper use of animal wastes
- It can be used for different farm operations like heating the brooder house, drying etc
Disadvantages
(b) Simple farm tool
Some tools used in the farm are:
1. Cutlass
2. Hoe
3. Garden fork
4. Hand fork
5. Trowel
6. Rake
7. Shears
8. Secateurs
9. Sprayers
10. Watering can
11. Sickle
12. Axe
13. File
14. Head pan
15. Wheel barrow
16. Spade
17. Shovel
18. Mattock
19. Mallet
20. Tapping knife
21. Dibber
22. Budding knife
(c) Common storage structures and processing structures found on farmstead in West Africa
Storage structures
Processing structures
(d) Explanation of denitrification
This is the process whereby soil nitrates are converted to nitrogen gas, nitric oxide or nitrous oxide through the activities of denitrifying bacteria
(e) Description of soil components
(i) Mineral Matter: Form the solid parts of the soil which are derived from weathered rocks
(ii) Organic matter:
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}