Explanation

(a) Benefits derived from growing ornamental plants 
- Source of employment/income to florists •
-Flowers are used for the expression of love and as gifts on special occasions 
-Shade loving ornamentals can be used for decoration in porches, verandahs and halls 
-Densely branched ornamental shrubs can be used for. fencing 
- Used for visual screening or concealing views to provide privacy 
- Pruning and clipping from hedges can be used as compost materials or mulch 
- Some ornamental plants have medicinal value and are used in herbal preparation 
- Some ornamental trees have edible fruits for human consumption 
- Fixing of atmospheric nitrogen into the soil by bacteria in the root nodules of leguminous ornamental plants 
-Decay of the leaves of ornamental plants improves soil fertility 
- Purifies the environment 
- Provides shade in car parks and public places 
- Helps to absorb and reflect sound waves to reduce noise from hooting horns from vehicles 
-Some ornamental plants are used for teaching and learning purposes 
- Helps to reduce light blurrs on major roads to prevent accidents in the night
- Serves as windbreaks 
- The beauty and fragrance of some ornamental plants give some people pleasure and satisfaction 
- Ornamental plants can be used to direct the movement of people through the planting of avenues trees in curves, hedges along path in school compounds etc.
 - Beautification of environment 
- Flowers and leaves are used for floral design such as wreaths. bouquets, garlands 
- Some flowers are used in the preparation of dyes 
- Prunings from ornamented plants may be used in feeding animals 
- Source of revenue to the government through taxation 
- Well established ornamental gardens serve as tourist attraction. 

(b) Symptoms of Cassava mosaic disease 
- Mottling of leaves/leaf curl 
- Distortion of leaves and stems 
-Vein clearing 
-Stunted growth 
-Development of yellowish pale areas alternating with green patches on the leaves / mosaic pattern on the leaves. 

(c) Explanation of forest management terms 
(i) Selective exploitation 
-This is the legal felling of trees based on criteria such as maturity and species 
- it helps to protect the soil from erosion and at the same time encourages continuous supply of timber. 

(ii) Regeneration 
- This is the process of forest re-growth after it has been exploited 
- It can occur either by re-growing from old stumps or deliberate planting of new forest seedlings in a deforested area. ((May be natural or artificial) 

(iii) Taungya farming: This is a management practice which involves the planting of food crops and some forest trees at the same time until the canopy of the trees close up.

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